LeetCode

C#

#	Title	Solution	Difficulty	IsComplete
1	TwoSum	C#	Easy	♥
2	Add Two Numbers	C#	Medium	♥
3	Longest Substring Without Repeating Characters	C#	Medium	♥
4	Median of Two Sorted Arrays	C#	Hard
5	Longest Palindromic Substring	C#	Medium
6	Zigzag Conversion	C#	Medium
7	Reverse Integer	C#	Medium	♥
8	String to Integer (atoi)	C#	Medium
9	Palindrome Number	C#	Easy	♥
10	Regular Expression Matching	C#	Hard
11	Container With Most Water	C#	Medium
12	Integer to Roman	C#	Medium
13	Roman to Integer	C#	Easy	♥
14	Longest Common Prefix	C#	Easy	♥
15	3Sum	C#	Medium
16	3Sum Closest	C#	Medium
17	Letter Combinations of a Phone Number	C#	Medium
18	4Sum	C#	Medium
19	Remove Nth Node From End of List	C#	Medium	♥
20	Valid Parentheses	C#	Easy	♥
21	Merge Two Sorted Lists	C#	Easy	♥
22	Generate Parentheses	C#	Medium
23	Merge k Sorted Lists	C#	Hard
24	Swap Nodes in Pairs	C#	Medium
25	Reverse Nodes in k-Group	C#	Hard
26	Remove Duplicates from Sorted Array	C#	Easy	♥
27	Remove Element	C#	Easy	♥
28	Implement strStr()	C#	Easy	♥
29	Divide Two Integers	C#	Medium
30	Substring with Concatenation of All Words	C#	Hard
31	Next Permutation	C#	Medium
32	Longest Valid Parentheses	C#	Hard
33	Search in Rotated Sorted Array	C#	Medium
34	Find First and Last Position of Element in Sorted Array	C#	Medium
35	Search Insert Position	C#	Easy	♥
36	Valid Sudoku	C#	Medium
37	Sudoku Solver	C#	Hard
38	Count and Say	C#	Medium	♥
39	Combination Sum	C#	Medium
40	Combination Sum II	C#	Medium
41	First Missing Positive	C#	Hard
42	Trapping Rain Water	C#	Hard
43	Multiply Strings	C#	Medium
44	Wildcard Matching	C#	Hard
45	Jump Game II	C#	Medium
46	Permutations	C#	Medium
47	Permutations II	C#	Medium
48	Rotate Image	C#	Medium
49	Group Anagrams	C#	Medium
50	Pow(x, n)	C#	Medium
51	N-Queens	C#	Hard
52	N-Queens II	C#	Hard
53	Maximum Subarray	C#	Easy
54	Spiral Matrix	C#	Medium
55	Jump Game	C#	Medium
56	Merge Intervals	C#	Medium
57	Insert Interval	C#	Medium
58	Length of Last Word	C#	Easy	♥
59	Spiral Matrix II	C#	Medium
60	Permutation Sequence	C#	Hard
61	Rotate List	C#	Medium
62	Unique Paths	C#	Medium
63	Unique Paths II	C#	Medium
64	Minimum Path Sum	C#	Medium
65	Valid Number	C#	Hard
66	Plus One	C#	Easy	♥
67	Add Binary	C#	Easy	♥
68	Text Justification	C#	Hard
69	Sqrt(x)	C#	Easy	♥
70	Climbing Stairs	C#	Easy	♥
71	Simplify Path	C#	Medium
72	Edit Distance	C#	Hard
73	Set Matrix Zeroes	C#	Medium
74	Search a 2D Matrix	C#	Medium
75	Sort Colors	C#	Medium
76	Minimum Window Substring	C#	Hard
77	Combinations	C#	Medium
78	Subsets	C#	Medium
79	Word Search	C#	Medium
80	Remove Duplicates from Sorted Array II	C#	Medium
81	Search in Rotated Sorted Array II	C#	Medium
82	Remove Duplicates from Sorted List II	C#	Medium
83	Remove Duplicates from Sorted List	C#	Easy	♥
84	Largest Rectangle in Histogram	C#	Hard
85	Maximal Rectangle	C#	Hard
86	Partition List	C#	Medium
87	Scramble String	C#	Hard
88	Merge Sorted Array	C#	Easy
89	Gray Code	C#	Medium
90	Subsets II	C#	Medium
91	Decode Ways	C#	Medium
92	Reverse Linked List II	C#	Medium
93	Restore IP Addresses	C#	Medium
94	Binary Tree Inorder Traversal	C#	Easy	♥
95	Unique Binary Search Trees II	C#	Medium
96	Unique Binary Search Trees	C#	Medium
97	Interleaving String	C#	Medium
98	Validate Binary Search Tree	C#	Medium
99	Recover Binary Search Tree	C#	Medium
100	Same Tree	C#	Easy	♥
101	Symmetric Tree	C#	Easy	♥
102	Binary Tree Level Order Traversal	C#	Medium
103	Binary Tree Zigzag Level Order Traversal	C#	Medium
104	Maximum Depth of Binary Tree	C#	Easy	♥
105	Construct Binary Tree from Preorder and Inorder Traversal	C#	Medium
106	Construct Binary Tree from Inorder and Postorder Traversal	C#	Medium
107	Binary Tree Level Order Traversal II	C#	Medium
108	Convert Sorted Array to Binary Search Tree	C#	Easy	♥
109	Convert Sorted List to Binary Search Tree	C#	Medium
110	Balanced Binary Tree	C#	Easy	♥
111	Minimum Depth of Binary Tree	C#	Easy
112	Path Sum	C#	Easy
113	Path Sum II	C#	Medium
114	Flatten Binary Tree to Linked List	C#	Medium
115	Distinct Subsequences	C#	Hard
116	Populating Next Right Pointers in Each Node	C#	Medium
117	Populating Next Right Pointers in Each Node II	C#	Medium
118	Pascal's Triangle	C#	Easy	♥
119	Pascal's Triangle II	C#	Easy	♥
120	Triangle	C#	Medium
121	Best Time to Buy and Sell Stock	C#	Easy
122	Best Time to Buy and Sell Stock II	C#	Medium	♥
123	Best Time to Buy and Sell Stock III	C#	Hard
124	Binary Tree Maximum Path Sum	C#	Hard
125	Valid Palindrome	C#	Easy	♥
126	Word Ladder II	C#	Hard
127	Word Ladder	C#	Hard
128	Longest Consecutive Sequence	C#	Medium
129	Sum Root to Leaf Numbers	C#	Medium
130	Surrounded Regions	C#	Medium
131	Palindrome Partitioning	C#	Medium
132	Palindrome Partitioning II	C#	Hard
133	Clone Graph	C#	Medium
134	Gas Station	C#	Medium
135	Candy	C#	Hard
136	Single Number	C#	Easy	♥
137	Single Number II	C#	Medium
138	Copy List with Random Pointer	C#	Medium
139	Word Break	C#	Medium
140	Word Break II	C#	Hard
141	Linked List Cycle	C#	Easy	♥
142	Linked List Cycle II	C#	Medium
143	Reorder List	C#	Medium
144	Binary Tree Preorder Traversal	C#	Easy
145	Binary Tree Postorder Traversal	C#	Easy
146	LRU Cache	C#	Medium
147	Insertion Sort List	C#	Medium
148	Sort List	C#	Medium
149	Max Points on a Line	C#	Hard
150	Evaluate Reverse Polish Notation	C#	Medium
151	Reverse Words in a String	C#	Medium
152	Maximum Product Subarray	C#	Medium
153	Find Minimum in Rotated Sorted Array	C#	Medium
154	Find Minimum in Rotated Sorted Array II	C#	Hard
155	Min Stack	C#	Easy	♥
156	Binary Tree Upside Down	C#	Medium
157	Read N Characters Given Read4	C#	Easy
158	Read N Characters Given read4 II - Call Multiple Times	C#	Hard
159	Longest Substring with At Most Two Distinct Characters	C#	Medium
160	Intersection of Two Linked Lists	C#	Easy	♥
161	One Edit Distance	C#	Medium
162	Find Peak Element	C#	Medium
163	Missing Ranges	C#	Easy
164	Maximum Gap	C#	Medium
165	Compare Version Numbers	C#	Medium
166	Fraction to Recurring Decimal	C#	Medium
167	Two Sum II - Input array is sorted	C#	Easy	♥
168	Excel Sheet Column Title	C#	Easy	♥
169	Majority Element	C#	Easy
170	Two Sum III - Data structure design	C#	Easy
171	Excel Sheet Column Number	C#	Easy	♥
172	Factorial Trailing Zeroes	C#	Medium	♥
173	Binary Search Tree Iterator	C#	Medium
174	Dungeon Game	C#	Hard
175	Combine Two Tables	C#	Easy
176	Second Highest Salary	C#	Medium
177	Nth Highest Salary	C#	Medium
178	Rank Scores	C#	Medium
179	Largest Number	C#	Medium
180	Consecutive Numbers	C#	Medium
181	Employees Earning More Than Their Managers	C#	Easy
182	Duplicate Emails	C#	Easy
183	Customers Who Never Order	C#	Easy
184	Department Highest Salary	C#	Medium
185	Department Top Three Salaries	C#	Hard
186	Reverse Words in a String II	C#	Medium
187	Repeated DNA Sequences	C#	Medium
188	Best Time to Buy and Sell Stock IV	C#	Hard
189	Rotate Array	C#	Medium	♥
190	Reverse Bits	C#	Easy	♥
191	Number of 1 Bits	C#	Easy	♥
192	Word Frequency	C#	Medium
193	Valid Phone Numbers	C#	Easy
194	Transpose File	C#	Medium
195	Tenth Line	C#	Easy
196	Delete Duplicate Emails	C#	Easy
197	Rising Temperature	C#	Easy
198	House Robber	C#	Medium	♥
199	Binary Tree Right Side View	C#	Medium
200	Number of Islands	C#	Medium
201	Bitwise AND of Numbers Range	C#	Medium
202	Happy Number	C#	Easy	♥
203	Remove Linked List Elements	C#	Easy	♥
204	Count Primes	C#	Medium	♥
205	Isomorphic Strings	C#	Easy	♥
206	Reverse Linked List	C#	Easy	♥
207	Course Schedule	C#	Medium
208	Implement Trie (Prefix Tree)	C#	Medium
209	Minimum Size Subarray Sum	C#	Medium
210	Course Schedule II	C#	Medium
211	Design Add and Search Words Data Structure	C#	Medium
212	Word Search II	C#	Hard
213	House Robber II	C#	Medium
214	Shortest Palindrome	C#	Hard
215	Kth Largest Element in an Array	C#	Medium
216	Combination Sum III	C#	Medium
217	Contains Duplicate	C#	Easy	♥
218	The Skyline Problem	C#	Hard
219	Contains Duplicate II	C#	Easy	♥
220	Contains Duplicate III	C#	Hard
221	Maximal Square	C#	Medium
222	Count Complete Tree Nodes	C#	Easy
223	Rectangle Area	C#	Medium
224	Basic Calculator	C#	Hard
225	Implement Stack using Queues	C#	Easy	♥
226	Invert Binary Tree	C#	Easy
227	Basic Calculator II	C#	Medium
228	Summary Ranges	C#	Easy
229	Majority Element II	C#	Medium
230	Kth Smallest Element in a BST	C#	Medium
231	Power of Two	C#	Easy	♥
232	Implement Queue using Stacks	C#	Easy	♥
233	Number of Digit One	C#	Hard
234	Palindrome Linked List	C#	Easy	♥
235	Lowest Common Ancestor of a Binary Search Tree	C#	Easy
236	Lowest Common Ancestor of a Binary Tree	C#	Medium
237	Delete Node in a Linked List	C#	Easy	♥
238	Product of Array Except Self	C#	Medium
239	Sliding Window Maximum	C#	Hard
240	Search a 2D Matrix II	C#	Medium
241	Different Ways to Add Parentheses	C#	Medium
242	Valid Anagram	C#	Easy	♥
243	Shortest Word Distance	C#	Easy
244	Shortest Word Distance II	C#	Medium
245	Shortest Word Distance III	C#	Medium
246	Strobogrammatic Number	C#	Easy
247	Strobogrammatic Number II	C#	Medium
248	Strobogrammatic Number III	C#	Hard
249	Group Shifted Strings	C#	Medium
250	Count Univalue Subtrees	C#	Medium
251	Flatten 2D Vector	C#	Medium
252	Meeting Rooms	C#	Easy
253	Meeting Rooms II	C#	Medium
254	Factor Combinations	C#	Medium
255	Verify Preorder Sequence in Binary Search Tree	C#	Medium
256	Paint House	C#	Medium
257	Binary Tree Paths	C#	Easy	♥
258	Add Digits	C#	Easy	♥
259	3Sum Smaller	C#	Medium
260	Single Number III	C#	Medium
261	Graph Valid Tree	C#	Medium
262	Trips and Users	C#	Hard
263	Ugly Number	C#	Easy	♥
264	Ugly Number II	C#	Medium
265	Paint House II	C#	Hard
266	Palindrome Permutation	C#	Easy
267	Palindrome Permutation II	C#	Medium
268	Missing Number	C#	Easy	♥
269	Alien Dictionary	C#	Hard
270	Closest Binary Search Tree Value	C#	Easy
271	Encode and Decode Strings	C#	Medium
272	Closest Binary Search Tree Value II	C#	Hard
273	Integer to English Words	C#	Hard
274	H-Index	C#	Medium
275	H-Index II	C#	Medium
276	Paint Fence	C#	Medium
277	Find the Celebrity	C#	Medium
278	First Bad Version	C#	Easy	♥
279	Perfect Squares	C#	Medium
280	Wiggle Sort	C#	Medium
281	Zigzag Iterator	C#	Medium
282	Expression Add Operators	C#	Hard
283	Move Zeroes	C#	Easy	♥
284	Game of Life	C#	Medium
285	Inorder Successor in BST	C#	Medium
286	Walls and Gates	C#	Medium
287	Find the Duplicate Number	C#	Medium
288	Unique Word Abbreviation	C#	Medium
289	Game of Life	C#	Medium
290	Word Pattern	C#	Easy	♥
291	Word Pattern II	C#	Medium
292	Nim Game	C#	Easy
293	Flip Game	C#	Easy
294	Flip Game II	C#	Medium
295	Find Median from Data Stream	C#	Hard
296	Best Meeting Point	C#	Hard
297	Serialize and Deserialize Binary Tree	C#	Hard
298	Binary Tree Longest Consecutive Sequence	C#	Medium
299	Bulls and Cows	C#	Medium	♥
300	Longest Increasing Subsequence	C#	Medium
301	Remove Invalid Parentheses	C#	Hard
302	Smallest Rectangle Enclosing Black Pixels	C#	Hard
303	Range Sum Query - Immutable	C#	Easy	♥
304	Range Sum Query 2D - Immutable	C#	Medium
305	Number of Islands II	C#	Hard
306	Additive Number	C#	Medium
307	Range Sum Query - Mutable	C#	Medium
308	Range Sum Query 2D - Mutable	C#	Hard
309	Best Time to Buy and Sell Stock with Cooldown	C#	Medium
310	Minimum Height Trees	C#	Medium
311	Sparse Matrix Multiplication	C#	Medium
312	Burst Balloons	C#	Hard
313	Super Ugly Number	C#	Medium
314	Binary Tree Vertical Order Traversal	C#	Medium
315	Count of Smaller Numbers After Self	C#	Hard
316	Remove Duplicate Letters	C#	Medium
317	Shortest Distance from All Buildings	C#	Hard
318	Maximum Product of Word Lengths	C#	Medium
319	Bulb Switcher	C#	Medium
320	Generalized Abbreviation	C#	Medium
321	Create Maximum Number	C#	Hard
322	Coin Change	C#	Medium
323	Number of Connected Components in an Undirected Graph	C#	Medium
324	Wiggle Sort II	C#	Medium
325	Maximum Size Subarray Sum Equals k	C#	Medium
326	Power of Three	C#	Easy	♥
327	Count of Range Sum	C#	Hard
328	Odd Even Linked List	C#	Medium
329	Longest Increasing Path in a Matrix	C#	Hard
330	Patching Array	C#	Hard
331	Verify Preorder Serialization of a Binary Tree	C#	Medium
332	Reconstruct Itinerary	C#	Hard
333	Largest BST Subtree	C#	Medium
334	Increasing Triplet Subsequence	C#	Medium
335	Self Crossing	C#	Hard
336	Palindrome Pairs	C#	Hard
337	House Robber III	C#	Medium
338	Counting Bits	C#	Easy
339	Nested List Weight Sum	C#	Medium
340	Longest Substring with At Most K Distinct Characters	C#	Medium
341	Flatten Nested List Iterator	C#	Medium
342	Power of Four	C#	Easy	♥
343	Integer Break	C#	Medium
344	Reverse String	C#	Easy	♥
345	Reverse Vowels of a String	C#	Easy	♥
346	Moving Average from Data Stream	C#	Easy
347	Top K Frequent Elements	C#	Medium
348	Design Tic-Tac-Toe	C#	Medium
349	Intersection of Two Arrays	C#	Easy	♥
350	Intersection of Two Arrays II	C#	Easy	♥
351	Android Unlock Patterns	C#	Medium
352	Data Stream as Disjoint Intervals	C#	Hard
353	Design Snake Game	C#	Medium
354	Russian Doll Envelopes	C#	Hard
355	Design Twitter	C#	Medium
356	Line Reflection	C#	Medium
357	Count Numbers with Unique Digits	C#	Medium
358	Rearrange String k Distance Apart	C#	Hard
359	Logger Rate Limiter	C#	Easy
360	Sort Transformed Array	C#	Medium
361	Bomb Enemy	C#	Medium
362	Design Hit Counter	C#	Medium
363	Max Sum of Rectangle No Larger Than K	C#	Hard
364	Nested List Weight Sum II	C#	Medium
365	Water and Jug Problem	C#	Medium
366	Find Leaves of Binary Tree	C#	Medium
367	Valid Perfect Square	C#	Easy
368	Largest Divisible Subset	C#	Medium
369	Plus One Linked List	C#	Medium
370	Range Addition	C#	Medium
371	Sum of Two Integers	C#	Medium
372	Super Pow	C#	Medium
373	Find K Pairs with Smallest Sums	C#	Medium
374	Guess Number Higher or Lower	C#	Easy	♥
375	Guess Number Higher or Lower II	C#	Medium
376	Wiggle Subsequence	C#	Medium
377	Combination Sum IV	C#	Medium
378	Kth Smallest Element in a Sorted Matrix	C#	Medium
379	Design Phone Directory	C#	Medium
380	Insert Delete GetRandom O(1)	C#	Medium
381	Insert Delete GetRandom O(1) - Duplicates allowed	C#	Hard
382	Linked List Random Node	C#	Medium
383	Ransom Note	C#	Easy	♥
384	Shuffle an Array	C#	Medium
385	Mini Parser	C#	Medium
386	Lexicographical Numbers	C#	Medium
387	First Unique Character in a String	C#	Easy	♥
388	Longest Absolute File Path	C#	Medium
389	Find the Difference	C#	Easy	♥
390	Elimination Game	C#	Medium
391	Perfect Rectangle	C#	Hard
392	Is Subsequence	C#	Easy	♥
393	UTF-8 Validation	C#	Medium
394	Decode String	C#	Medium
395	Longest Substring with At Least K Repeating Characters	C#	Medium
396	Rotate Function	C#	Medium
397	Integer Replacement	C#	Medium
398	Random Pick Index	C#	Medium
399	Evaluate Division	C#	Medium
400	Nth Digit	C#	Medium
401	Binary Watch	C#	Easy	♥
402	Remove K Digits	C#	Medium
403	Frog Jump	C#	Hard
404	Sum of Left Leaves	C#	Easy	♥
405	Convert a Number to Hexadecimal	C#	Easy	♥
406	Queue Reconstruction by Height	C#	Medium
407	Trapping Rain Water II	C#	Hard
408	Valid Word Abbreviation	C#	Easy
409	Longest Palindrome	C#	Easy	♥
410	Split Array Largest Sum	C#	Hard
411	Minimum Unique Word Abbreviation	C#	Hard
412	Fizz Buzz	C#	Easy
413	Arithmetic Slices	C#	Medium
414	Third Maximum Number	C#	Easy	♥
415	Add Strings	C#	Easy	♥
416	Partition Equal Subset Sum	C#	Medium
417	Pacific Atlantic Water Flow	C#	Medium
418	Sentence Screen Fitting	C#	Medium
419	Battleships in a Board	C#	Medium
420	Strong Password Checker	C#	Hard
421	Maximum XOR of Two Numbers in an Array	C#	Medium
422	Valid Word Square	C#	Easy
423	Reconstruct Original Digits from English	C#	Medium
424	Longest Repeating Character Replacement	C#	Medium
425	Word Squares	C#	Hard
426	Convert Binary Search Tree to Sorted Doubly Linked List	C#	Medium
427	Construct Quad Tree	C#	Medium
428	Serialize and Deserialize N-ary Tree	C#	Hard
429	N-ary Tree Level Order Traversal	C#	Medium
430	Flatten a Multilevel Doubly Linked List	C#	Medium
431	Encode N-ary Tree to Binary Tree	C#	Hard
432	All O`one Data Structure	C#	Hard
433	Minimum Genetic Mutation	C#	Medium
434	Number of Segments in a String	C#	Easy	♥
435	Non-overlapping Intervals	C#	Medium
436	Find Right Interval	C#	Medium
437	Path Sum III	C#	Medium
438	Find All Anagrams in a String	C#	Medium
439	Ternary Expression Parser	C#	Medium
440	K-th Smallest in Lexicographical Order	C#	Hard
441	Arranging Coins	C#	Easy	♥
442	Find All Duplicates in an Array	C#	Medium
443	String Compression	C#	Medium
444	Sequence Reconstruction	C#	Medium
445	Add Two Numbers II	C#	Medium
446	Arithmetic Slices II - Subsequence	C#	Hard
447	Number of Boomerangs	C#	Medium	♥
448	Find All Numbers Disappeared in an Array	C#	Easy	♥
449	Serialize and Deserialize BST	C#	Medium
450	Delete Node in a BST	C#	Medium
451	Sort Characters By Frequency	C#	Medium
452	Minimum Number of Arrows to Burst Balloons	C#	Medium
453	Minimum Moves to Equal Array Elements	C#	Medium	♥
454	4Sum II	C#	Medium
455	Assign Cookies	C#	Easy	♥
456	132 Pattern	C#	Medium
457	Circular Array Loop	C#	Medium
458	Poor Pigs	C#	Hard
459	Repeated Substring Pattern	C#	Easy	♥
460	LFU Cache	C#	Hard
461	Hamming Distance	C#	Easy	♥
462	Minimum Moves to Equal Array Elements II	C#	Medium
463	Island Perimeter	C#	Easy	♥
464	Can I Win	C#	Medium
465	Optimal Account Balancing	C#	Hard
466	Count The Repetitions	C#	Hard
467	Unique Substrings in Wraparound String	C#	Medium
468	Validate IP Address	C#	Medium
469	Convex Polygon	C#	Medium
470	Implement Rand10() Using Rand7()	C#	Medium
471	Encode String with Shortest Length	C#	Hard
472	Concatenated Words	C#	Hard
473	Matchsticks to Square	C#	Medium
474	Ones and Zeroes	C#	Medium
475	Heaters	C#	Medium	♥
476	Number Complement	C#	Easy	♥
477	Total Hamming Distance	C#	Medium
478	Generate Random Point in a Circle	C#	Medium
479	Largest Palindrome Product	C#	Hard
480	Sliding Window Median	C#	Hard
481	Magical String	C#	Medium
482	License Key Formatting	C#	Easy
483	Smallest Good Base	C#	Hard
484	Find Permutation	C#	Medium
485	Max Consecutive Ones	C#	Easy
486	Predict the Winner	C#	Medium
487	Max Consecutive Ones II	C#	Medium
488	Zuma Game	C#	Hard
489	Robot Room Cleaner	C#	Hard
490	The Maze	C#	Medium
491	Non-decreasing Subsequences	C#	Medium
492	Construct the Rectangle	C#	Easy
493	Reverse Pairs	C#	Hard
494	Target Sum	C#	Medium
495	Teemo Attacking	C#	Easy
496	Next Greater Element I	C#	Easy	♥
497	Random Point in Non-overlapping Rectangles	C#	Medium
498	Diagonal Traverse	C#	Medium
499	The Maze III	C#	Hard
500	Keyboard Row	C#	Easy	♥
501	Find Mode in Binary Search Tree	C#	Easy
502	IPO	C#	Hard
503	Next Greater Element II	C#	Medium
504	Base 7	C#	Easy
505	The Maze II	C#	Medium
506	Relative Ranks	C#	Easy
507	Perfect Number	C#	Easy	♥
508	Most Frequent Subtree Sum	C#	Medium
509	Fibonacci Number	C#	Easy	♥
510	Inorder Successor in BST II	C#	Medium
511	Game Play Analysis I	C#	Easy
512	Game Play Analysis II	C#	Easy
513	Find Bottom Left Tree Value	C#	Medium
514	Freedom Trail	C#	Hard
515	Find Largest Value in Each Tree Row	C#	Medium
516	Longest Palindromic Subsequence	C#	Medium
517	Super Washing Machines	C#	Hard
518	Coin Change II	C#	Medium
519	Random Flip Matrix	C#	Medium
520	Detect Capital	C#	Easy	♥
521	Longest Uncommon Subsequence I	C#	Easy	♥
522	Longest Uncommon Subsequence II	C#	Medium
523	Continuous Subarray Sum	C#	Medium
524	Longest Word in Dictionary through Deleting	C#	Medium
525	Contiguous Array	C#	Medium
526	Beautiful Arrangement	C#	Medium
527	Word Abbreviation	C#	Hard
528	Random Pick with Weight	C#	Medium
529	Minesweeper	C#	Medium
530	Minimum Absolute Difference in BST	C#	Easy
531	Lonely Pixel I	C#	Medium
532	K-diff Pairs in an Array	C#	Medium	♥
533	Lonely Pixel II	C#	Medium
534	Game Play Analysis III	C#	Medium
535	Encode and Decode TinyURL	C#	Medium
536	Construct Binary Tree from String	C#	Medium
537	Complex Number Multiplication	C#	Medium
538	Convert BST to Greater Tree	C#	Medium
539	Minimum Time Difference	C#	Medium
540	Single Element in a Sorted Array	C#	Medium
541	Reverse String II	C#	Easy	♥
542	01 Matrix	C#	Medium
543	Diameter of Binary Tree	C#	Easy
544	Output Contest Matches	C#	Medium
545	Boundary of Binary Tree	C#	Medium
546	Remove Boxes	C#	Hard
547	Number of Provinces	C#	Medium
548	Split Array with Equal Sum	C#	Hard
549	Binary Tree Longest Consecutive Sequence II	C#	Medium
550	Game Play Analysis IV	C#	Medium
551	Student Attendance Record I	C#	Easy	♥
552	Student Attendance Record II	C#	Hard
553	Optimal Division	C#	Medium
554	Brick Wall	C#	Medium
555	Split Concatenated Strings	C#	Medium
556	Next Greater Element III	C#	Medium
557	Reverse Words in a String III	C#	Easy	♥
558	Logical OR of Two Binary Grids Represented as Quad-Trees	C#	Medium
559	Maximum Depth of N-ary Tree	C#	Easy
560	Subarray Sum Equals K	C#	Medium
561	Array Partition I	C#	Easy	？
562	Longest Line of Consecutive One in Matrix	C#	Medium
563	Binary Tree Tilt	C#	Easy	♥
564	Find the Closest Palindrome	C#	Hard
565	Array Nesting	C#	Medium
566	Reshape the Matrix	C#	Easy	♥
567	Permutation in String	C#	Medium
568	Maximum Vacation Days	C#	Hard
569	Median Employee Salary	C#	Hard
570	Managers with at Least 5 Direct Reports	C#	Medium
571	Find Median Given Frequency of Numbers	C#	Hard
572	Subtree of Another Tree	C#	Easy
573	Squirrel Simulation	C#	Medium
574	Winning Candidate	C#	Medium
575	Distribute Candies	C#	Easy	♥
576	Out of Boundary Paths	C#	Medium
577	Employee Bonus	C#	Easy
578	Get Highest Answer Rate Question	C#	Medium
579	Find Cumulative Salary of an Employee	C#	Hard
580	Count Student Number in Departments	C#	Medium
581	Shortest Unsorted Continuous Subarray	C#	Medium	♥
582	Kill Process	C#	Medium
583	Delete Operation for Two Strings	C#	Medium
584	Find Customer Referee	C#	Easy
585	Investments in 2016	C#	Medium
586	Customer Placing the Largest Number of Orders	C#	Easy
587	Erect the Fence	C#	Hard
588	Design In-Memory File System	C#	Hard
589	N-ary Tree Preorder Traversal	C#	Easy
590	N-ary Tree Postorder Traversal	C#	Easy
591	Tag Validator	C#	Hard
592	Fraction Addition and Subtraction	C#	Medium
593	Valid Square	C#	Medium
594	Longest Harmonious Subsequence	C#	Easy	♥
595	Big Countries	C#	Easy
596	Classes More Than 5 Students	C#	Easy
597	Friend Requests I: Overall Acceptance Rate	C#	Easy
598	Range Addition II	C#	Easy	♥
599	Minimum Index Sum of Two Lists	C#	Easy	♥
600	Non-negative Integers without Consecutive Ones	C#	Hard
601	Human Traffic of Stadium	C#	Hard
602	Friend Requests II: Who Has the Most Friends	C#	Medium
603	Consecutive Available Seats	C#	Easy
604	Design Compressed String Iterator	C#	Easy
605	Can Place Flowers	C#	Easy	♥
606	Construct String from Binary Tree	C#	Easy	♥
607	Sales Person	C#	Easy
608	Tree Node	C#	Medium
609	Find Duplicate File in System	C#	Medium
610	Triangle Judgement	C#	Easy
611	Valid Triangle Number	C#	Medium
612	Shortest Distance in a Plane	C#	Medium
613	Shortest Distance in a Line	C#	Easy
614	Second Degree Follower	C#	Medium
615	Average Salary: Departments VS Company	C#	Hard
616	Add Bold Tag in String	C#	Medium
617	Merge Two Binary Trees	C#	Easy
618	Students Report By Geography	C#	Hard
619	Biggest Single Number	C#	Easy
620	Not Boring Movies	C#	Easy
621	Task Scheduler	C#	Medium
622	Design Circular Queue	C#	Medium
623	Add One Row to Tree	C#	Medium
624	Maximum Distance in Arrays	C#	Medium
625	Minimum Factorization	C#	Medium
626	Exchange Seats	C#	Medium
627	Swap Salary	C#	Easy
628	Maximum Product of Three Numbers	C#	Easy	♥
629	K Inverse Pairs Array	C#	Hard
630	Course Schedule III	C#	Hard
631	Design Excel Sum Formula	C#	Hard
632	Smallest Range Covering Elements from K Lists	C#	Hard
633	Sum of Square Numbers	C#	Medium
634	Find the Derangement of An Array	C#	Medium
635	Design Log Storage System	C#	Medium
636	Exclusive Time of Functions	C#	Medium
637	Average of Levels in Binary Tree	C#	Easy	♥
638	Shopping Offers	C#	Medium
639	Decode Ways II	C#	Hard
640	Solve the Equation	C#	Medium
641	Design Circular Deque	C#	Medium
642	Design Search Autocomplete System	C#	Hard
643	Maximum Average Subarray I	C#	Easy	♥
644	Maximum Average Subarray II	C#	Hard
645	Set Mismatch	C#	Easy	♥
646	Maximum Length of Pair Chain	C#	Medium
647	Palindromic Substrings	C#	Medium
648	Replace Words	C#	Medium
649	Dota2 Senate	C#	Medium
650	2 Keys Keyboard	C#	Medium
651	4 Keys Keyboard	C#	Medium
652	Find Duplicate Subtrees	C#	Medium
653	Two Sum IV - Input is a BST	C#	Easy
654	Maximum Binary Tree	C#	Medium
655	Print Binary Tree	C#	Medium
656	Coin Path	C#	Hard
657	Robot Return to Origin	C#	Easy	♥
658	Find K Closest Elements	C#	Medium
659	Split Array into Consecutive Subsequences	C#	Medium
660	Remove 9	C#	Hard
661	Image Smoother	C#	Easy	♥
662	Maximum Width of Binary Tree	C#	Medium
663	Equal Tree Partition	C#	Medium
664	Strange Printer	C#	Hard
665	Non-decreasing Array	C#	Medium	♥
666	Path Sum IV	C#	Medium
667	Beautiful Arrangement II	C#	Medium
668	Kth Smallest Number in Multiplication Table	C#	Hard
669	Trim a Binary Search Tree	C#	Medium
670	Maximum Swap	C#	Medium
671	Second Minimum Node In a Binary Tree	C#	Easy
672	Bulb Switcher II	C#	Medium
673	Number of Longest Increasing Subsequence	C#	Medium
674	Longest Continuous Increasing Subsequence	C#	Easy
675	Cut Off Trees for Golf Event	C#	Hard
676	Implement Magic Dictionary	C#	Medium
677	Map Sum Pairs	C#	Medium
678	Valid Parenthesis String	C#	Medium
679	24 Game	C#	Hard
680	Valid Palindrome II	C#	Easy	♥
681	Next Closest Time	C#	Medium
682	Baseball Game	C#	Easy	♥
683	K Empty Slots	C#	Hard
684	Redundant Connection	C#	Medium
685	Redundant Connection II	C#	Hard
686	Repeated String Match	C#	Medium
687	Longest Univalue Path	C#	Medium
688	Knight Probability in Chessboard	C#	Medium
689	Maximum Sum of 3 Non-Overlapping Subarrays	C#	Hard
690	Employee Importance	C#	Medium
691	Employee Importance	C#	Hard
692	Top K Frequent Words	C#	Medium
693	Binary Number with Alternating Bits	C#	Easy	♥
694	Number of Distinct Islands	C#	Medium
695	Max Area of Island	C#	Medium
696	Count Binary Substrings	C#	Easy	♥
697	Degree of an Array	C#	Easy	♥
698	Partition to K Equal Sum Subsets	C#	Medium
699	Falling Squares	C#	Hard
700	Search in a Binary Search Tree	C#	Easy
701	Insert into a Binary Search Tree	C#	Medium
702	Search in a Sorted Array of Unknown Size	C#	Medium
703	Kth Largest Element in a Stream	C#	Easy	♥
704	Binary Search	C#	Easy	♥
705	Design HashSet	C#	Easy
706	Design HashMap	C#	Easy
707	Design Linked List	C#	Medium
708	Insert into a Sorted Circular Linked List	C#	Medium
709	To Lower Case	C#	Easy	♥
710	Random Pick with Blacklist	C#	Hard
711	Number of Distinct Islands II	C#	Hard
712	Minimum ASCII Delete Sum for Two Strings	C#	Medium
713	Subarray Product Less Than K	C#	Medium
714	Best Time to Buy and Sell Stock with Transaction Fee	C#	Medium
715	Range Module	C#	Hard
716	Max Stack	C#	Hard
717	1-bit and 2-bit Characters	C#	Easy
718	Maximum Length of Repeated Subarray	C#	Medium
719	Find K-th Smallest Pair Distance	C#	Hard
720	Longest Word in Dictionary	C#	Medium
721	Accounts Merge	C#	Medium
722	Remove Comments	C#	Medium
723	Candy Crush	C#	Medium
724	Find Pivot Index	C#	Easy	♥
725	Split Linked List in Parts	C#	Medium
726	Number of Atoms	C#	Hard
727	Minimum Window Subsequence	C#	Hard
728	Self Dividing Numbers	C#	Easy	♥
729	My Calendar I	C#	Medium
730	Count Different Palindromic Subsequences	C#	Hard
731	My Calendar II	C#	Medium
732	My Calendar III	C#	Hard
733	Flood Fill	C#	Easy
734	Sentence Similarity	C#	Easy
735	Asteroid Collision	C#	Medium
736	Parse Lisp Expression	C#	Hard
737	Sentence Similarity II	C#	Medium
738	Monotone Increasing Digits	C#	Medium
739	Daily Temperatures	C#	Medium
740	Delete and Earn	C#	Medium
741	Cherry Pickup	C#	Hard
742	Closest Leaf in a Binary Tree	C#	Medium
743	Network Delay Time	C#	Medium
744	Find Smallest Letter Greater Than Target	C#	Easy	♥
745	Prefix and Suffix Search	C#	Hard
746	Min Cost Climbing Stairs	C#	Easy
747	Largest Number At Least Twice of Others	C#	Easy	♥
748	Shortest Completing Word	C#	Easy	♥
749	Contain Virus	C#	Hard
750	Number Of Corner Rectangles	C#	Medium
751	IP to CIDR	C#	Medium
752	Open the Lock	C#	Medium
753	Cracking the Safe	C#	Hard
754	Reach a Number	C#	Medium
755	Pour Water	C#	Medium
756	Pyramid Transition Matrix	C#	Medium
757	Set Intersection Size At Least Two	C#	Hard
758	Bold Words in String	C#	Medium
759	Employee Free Time	C#	Hard
760	Find Anagram Mappings	C#	Easy
761	Special Binary String	C#	Hard
762	Prime Number of Set Bits in Binary Representation	C#	Easy	♥
763	Partition Labels	C#	Medium
764	Largest Plus Sign	C#	Medium
765	Couples Holding Hands	C#	Hard
766	Toeplitz Matrix	C#	Easy	♥
767	Reorganize String	C#	Medium
768	Max Chunks To Make Sorted II	C#	Hard
769	Max Chunks To Make Sorted	C#	Medium
770	Basic Calculator IV	C#	Hard
771	Jewels and Stones	C#	Easy	♥
772	Basic Calculator III	C#	Hard
773	Sliding Puzzle	C#	Hard
774	Minimize Max Distance to Gas Station	C#	Hard
775	Global and Local Inversions	C#	Medium
776	Split BST	C#	Medium
777	Swap Adjacent in LR String	C#	Medium
778	Swim in Rising Water	C#	Hard
779	K-th Symbol in Grammar	C#	Medium
780	Reaching Points	C#	Hard
781	Rabbits in Forest	C#	Medium
782	Transform to Chessboard	C#	Hard
783	Minimum Distance Between BST Nodes	C#	Easy
784	Letter Case Permutation	C#	Medium
785	Is Graph Bipartite?	C#	Medium
786	K-th Smallest Prime Fraction	C#	Medium
787	Cheapest Flights Within K Stops	C#	Medium
788	Rotated Digits	C#	Medium	♥
789	Escape The Ghosts	C#	Medium
790	Domino and Tromino Tiling	C#	Medium
791	Custom Sort String	C#	Medium
792	Number of Matching Subsequences	C#	Medium
793	Preimage Size of Factorial Zeroes Function	C#	Hard
794	Valid Tic-Tac-Toe State	C#	Medium
795	Number of Subarrays with Bounded Maximum	C#	Hard
796	Rotate String	C#	Easy
797	All Paths From Source to Target	C#	Medium
798	Smallest Rotation with Highest Score	C#	Hard
799	Champagne Tower	C#	Medium
800	Similar RGB Color	C#	Easy
801	Minimum Swaps To Make Sequences Increasing	C#	Hard
802	Find Eventual Safe States	C#	Medium
803	Bricks Falling When Hit	C#	Hard
804	Unique Morse Code Words	C#	Easy	♥
805	Split Array With Same Average	C#	Hard
806	Number of Lines To Write String	C#	Easy
807	Max Increase to Keep City Skyline	C#	Medium
808	Soup Servings	C#	Medium
809	Expressive Words	C#	Medium
810	Chalkboard XOR Game	C#	Hard
811	Subdomain Visit Count	C#	Medium	♥
812	Largest Triangle Area	C#	Easy	♥
813	Largest Sum of Averages	C#	Medium
814	Binary Tree Pruning	C#	Medium
815	Bus Routes	C#	Hard
816	Ambiguous Coordinates	C#	Medium
817	Linked List Components	C#	Medium
818	Race Car	C#	Hard
819	Most Common Word	C#	Easy	♥
820	Short Encoding of Words	C#	Medium
821	Shortest Distance to a Character	C#	Easy
822	Card Flipping Game	C#	Medium
823	Binary Trees With Factors	C#	Medium
824	Goat Latin	C#	Easy	♥
825	Friends Of Appropriate Ages	C#	Medium
826	Most Profit Assigning Work	C#	Medium
827	Making A Large Island	C#	Hard
828	Count Unique Characters of All Substrings of a Given String	C#	Hard
829	Consecutive Numbers Sum	C#	Hard
830	Positions of Large Groups	C#	Easy	♥
831	Masking Personal Information	C#	Medium
832	Flipping an Image	C#	Easy	♥
833	Find And Replace in String	C#	Medium
834	Sum of Distances in Tree	C#	Hard
835	Image Overlap	C#	Medium
836	Rectangle Overlap	C#	Easy	♥
837	New 21 Game	C#	Medium
838	Push Dominoes	C#	Medium
839	Similar String Groups	C#	Hard
840	Magic Squares In Grid	C#	Medium	♥
841	Keys and Rooms	C#	Medium
842	Split Array into Fibonacci Sequence	C#	Medium
843	Guess the Word	C#	Hard
844	Backspace String Compare	C#	Easy	♥
845	Longest Mountain in Array	C#	Medium
846	Hand of Straights	C#	Medium
847	Shortest Path Visiting All Nodes	C#	Hard
848	Shifting Letters	C#	Medium
849	Maximize Distance to Closest Person	C#	Medium	♥
850	Rectangle Area II	C#	Hard
851	Loud and Rich	C#	Medium
852	Peak Index in a Mountain Array	C#	Easy	♥
853	Car Fleet	C#	Medium
854	K-Similar Strings	C#	Hard
855	Exam Room	C#	Medium
856	Score of Parentheses	C#	Medium
857	Minimum Cost to Hire K Workers	C#	Hard
858	Mirror Reflection	C#	Medium
859	Buddy Strings	C#	Easy	♥
860	Lemonade Change	C#	Easy	♥
861	Score After Flipping Matrix	C#	Medium
862	Shortest Subarray with Sum at Least K	C#	Hard
863	All Nodes Distance K in Binary Tree	C#	Medium
864	Shortest Path to Get All Keys	C#	Hard
865	Smallest Subtree with all the Deepest Nodes	C#	Medium
866	Prime Palindrome	C#	Medium
867	Transpose Matrix	C#	Easy	♥
868	Binary Gap	C#	Easy	♥
869	Reordered Power of 2	C#	Medium
870	Advantage Shuffle	C#	Medium
871	Minimum Number of Refueling Stops	C#	Hard
872	Leaf-Similar Trees	C#	Easy
873	Length of Longest Fibonacci Subsequence	C#	Medium
874	Walking Robot Simulation	C#	Medium	♥
875	Koko Eating Bananas	C#	Medium
876	Middle of the Linked List	C#	Easy	♥
877	Stone Game	C#	Medium
878	Nth Magical Number	C#	Hard
879	Profitable Schemes	C#	Hard
880	Decoded String at Index	C#	Medium
881	Boats to Save People	C#	Medium
882	Reachable Nodes In Subdivided Graph	C#	Hard
883	Projection Area of 3D Shapes	C#	Easy	♥
884	Uncommon Words from Two Sentences	C#	Easy	♥
885	Spiral Matrix III	C#	Medium
886	Possible Bipartition	C#	Medium
887	Super Egg Drop	C#	Hard
888	Fair Candy Swap	C#	Easy	♥
889	Construct Binary Tree from Preorder and Postorder Traversal	C#	Medium
890	Find and Replace Pattern	C#	Medium
891	Sum of Subsequence Widths	C#	Hard
892	Surface Area of 3D Shapes	C#	Easy	♥
893	Groups of Special-Equivalent Strings	C#	Medium	♥
894	All Possible Full Binary Trees	C#	Medium
895	Maximum Frequency Stack	C#	Hard
896	Monotonic Array	C#	Easy	♥
897	Increasing Order Search Tree	C#	Easy
898	Bitwise ORs of Subarrays	C#	Medium
899	Orderly Queue	C#	Hard
900	RLE Iterator	C#	Medium
901	Online Stock Span	C#	Medium
902	Numbers At Most N Given Digit Set	C#	Hard
903	Valid Permutations for DI Sequence	C#	Hard
904	Fruit Into Baskets	C#	Medium
905	Sort Array By Parity	C#	Easy	♥
906	Super Palindromes	C#	Hard
907	Sum of Subarray Minimums	C#	Medium
908	Smallest Range I	C#	Easy	♥
909	Snakes and Ladders	C#	Medium
910	Smallest Range II	C#	Medium
911	Online Election	C#	Medium
912	Sort an Array	C#	Medium
913	Cat and Mouse	C#	Hard
914	X of a Kind in a Deck of Cards	C#	Easy
915	Partition Array into Disjoint Intervals	C#	Medium
916	Word Subsets	C#	Medium
917	Reverse Only Letters	C#	Easy	♥
918	Maximum Sum Circular Subarray	C#	Medium
919	Complete Binary Tree Inserter	C#	Medium
920	Number of Music Playlists	C#	Hard
921	Minimum Add to Make Parentheses Valid	C#	Medium
922	Sort Array By Parity II	C#	Easy	♥
923	3Sum With Multiplicity	C#	Medium
924	Minimize Malware Spread	C#	Hard
925	Long Pressed Name	C#	Easy	♥
926	Flip String to Monotone Increasing	C#	Medium
927	Three Equal Parts	C#	Hard
928	Minimize Malware Spread II	C#	Hard
929	Unique Email Addresses	C#	Easy	♥
930	Binary Subarrays With Sum	C#	Medium
931	Minimum Falling Path Sum	C#	Medium
932	Beautiful Array	C#	Medium
933	Number of Recent Calls	C#	Easy
934	Shortest Bridge	C#	Medium
935	Knight Dialer	C#	Medium
936	Stamping The Sequence	C#	Hard
937	Reorder Data in Log Files	C#	Easy	♥
938	Range Sum of BST	C#	Easy
939	Minimum Area Rectangle	C#	Medium
940	Distinct Subsequences II	C#	Hard
941	Valid Mountain Array	C#	Easy	♥
942	DI String Match	C#	Easy	♥
943	Find the Shortest Superstring	C#	Hard
944	Delete Columns to Make Sorted	C#	Easy	♥
945	Minimum Increment to Make Array Unique	C#	Medium
946	Validate Stack Sequences	C#	Medium
947	Most Stones Removed with Same Row or Column	C#	Medium
948	Bag of Tokens	C#	Medium
949	Largest Time for Given Digits	C#	Medium	♥
950	Reveal Cards In Increasing Order	C#	Medium
951	Flip Equivalent Binary Trees	C#	Medium
952	Largest Component Size by Common Factor	C#	Hard
953	Verifying an Alien Dictionary	C#	Easy	♥
954	Array of Doubled Pairs	C#	Medium
955	Delete Columns to Make Sorted II	C#	Medium
956	Tallest Billboard	C#	Hard
957	Prison Cells After N Days	C#	Medium
958	Check Completeness of a Binary Tree	C#	Medium
959	Regions Cut By Slashes	C#	Medium
960	Delete Columns to Make Sorted III	C#	Hard
961	N-Repeated Element in Size 2N Array	C#	Easy	♥
962	Maximum Width Ramp	C#	Medium
963	Minimum Area Rectangle II	C#	Medium
964	Least Operators to Express Number	C#	Hard
965	Univalued Binary Tree	C#	Easy	♥
966	Vowel Spellchecker	C#	Medium
967	Numbers With Same Consecutive Differences	C#	Medium
968	Binary Tree Cameras	C#	Hard
969	Pancake Sorting	C#	Medium
970	Powerful Integers	C#	Medium	♥
971	Flip Binary Tree To Match Preorder Traversal	C#	Medium
972	Equal Rational Numbers	C#	Hard
973	K Closest Points to Origin	C#	Medium
974	Subarray Sums Divisible by K	C#	Medium
975	Odd Even Jump	C#	Hard
976	Largest Perimeter Triangle	C#	Easy	♥
977	Squares of a Sorted Array	C#	Easy	♥
978	Longest Turbulent Subarray	C#	Medium
979	Distribute Coins in Binary Tree	C#	Medium
980	Unique Paths III	C#	Hard
981	Time Based Key-Value Store	C#	Medium
982	Triples with Bitwise AND Equal To Zero	C#	Hard
983	Minimum Cost For Tickets	C#	Medium
984	String Without AAA or BBB	C#	Medium
985	Sum of Even Numbers After Queries	C#	Medium	♥
986	Interval List Intersections	C#	Medium
987	Vertical Order Traversal of a Binary Tree	C#	Hard
988	Smallest String Starting From Leaf	C#	Medium
989	Add to Array-Form of Integer	C#	Easy	♥
990	Satisfiability of Equality Equations	C#	Medium
991	Broken Calculator	C#	Medium
992	Subarrays with K Different Integers	C#	Hard
993	Cousins in Binary Tree	C#	Easy
994	Rotting Oranges	C#	Medium
995	Minimum Number of K Consecutive Bit Flips	C#	Hard
996	Number of Squareful Arrays	C#	Hard
997	Find the Town Judge	C#	Easy
998	Maximum Binary Tree II	C#	Medium
999	Available Captures for Rook	C#	Easy	♥
1000	Minimum Cost to Merge Stones	C#	Hard
1001	Grid Illumination	C#	Hard
1002	Find Common Characters	C#	Easy
1003	Check If Word Is Valid After Substitutions	C#	Medium
1004	Max Consecutive Ones III	C#	Medium
1005	Maximize Sum Of Array After K Negations	C#	Easy
1006	Clumsy Factorial	C#	Medium
1007	Minimum Domino Rotations For Equal Row	C#	Medium
1008	Construct Binary Search Tree from Preorder Traversal	C#	Medium
1009	Complement of Base 10 Integer	C#	Easy
1010	Pairs of Songs With Total Durations Divisible by 60	C#	Medium
1011	Capacity To Ship Packages Within D Days	C#	Medium
1012	Numbers With Repeated Digits	C#	Hard
1013	Partition Array Into Three Parts With Equal Sum	C#	Easy
1014	Best Sightseeing Pair	C#	Medium
1015	Smallest Integer Divisible by K	C#	Medium
1016	Binary String With Substrings Representing 1 To N	C#	Medium
1017	Convert to Base -2	C#	Medium
1018	Binary Prefix Divisible By 5	C#	Easy
1019	Next Greater Node In Linked List	C#	Medium
1020	Number of Enclaves	C#	Medium
1021	Remove Outermost Parentheses	C#	Easy
1022	Sum of Root To Leaf Binary Numbers	C#	Easy
1023	Camelcase Matching	C#	Medium
1024	Video Stitching	C#	Medium
1025	Divisor Game	C#	Easy
1026	Maximum Difference Between Node and Ancestor	C#	Medium
1027	Longest Arithmetic Subsequence	C#	Medium
1028	Recover a Tree From Preorder Traversal	C#	Hard
1029	Two City Scheduling	C#	Medium
1030	Matrix Cells in Distance Order	C#	Easy
1031	Maximum Sum of Two Non-Overlapping Subarrays	C#	Medium
1032	Stream of Characters	C#	Hard
1033	Moving Stones Until Consecutive	C#	Medium
1034	Coloring A Border	C#	Medium
1035	Uncrossed Lines	C#	Medium
1036	Escape a Large Maze	C#	Hard
1037	Valid Boomerang	C#	Easy
1038	Binary Search Tree to Greater Sum Tree	C#	Medium
1039	Minimum Score Triangulation of Polygon	C#	Medium
1040	Moving Stones Until Consecutive II	C#	Medium
1041	Robot Bounded In Circle	C#	Medium
1042	Flower Planting With No Adjacent	C#	Medium
1043	Partition Array for Maximum Sum	C#	Medium
1044	Longest Duplicate Substring	C#	Hard
1045	Customers Who Bought All Products	C#	Medium
1046	Last Stone Weight	C#	Easy
1047	Remove All Adjacent Duplicates In String	C#	Easy
1048	Longest String Chain	C#	Medium
1049	Last Stone Weight II	C#	Medium
1050	Actors and Directors Who Cooperated At Least Three Times	C#	Easy
1051	Height Checker	C#	Easy
1052	Grumpy Bookstore Owner	C#	Medium
1053	Previous Permutation With One Swap	C#	Medium
1054	Distant Barcodes	C#	Medium
1055	Shortest Way to Form String	C#	Medium
1056	Confusing Number	C#	Easy
1057	Campus Bikes	C#	Medium
1058	Minimize Rounding Error to Meet Target	C#	Medium
1059	All Paths from Source Lead to Destination	C#	Medium
1060	Missing Element in Sorted Array	C#	Medium
1061	Lexicographically Smallest Equivalent String	C#	Medium
1062	Longest Repeating Substring	C#	Medium
1063	Number of Valid Subarrays	C#	Hard
1064	Fixed Point	C#	Easy
1065	Index Pairs of a String	C#	Easy
1066	Campus Bikes II	C#	Medium
1067	Digit Count in Range	C#	Hard
1068	Product Sales Analysis I	C#	Easy
1069	Product Sales Analysis II	C#	Easy
1070	Product Sales Analysis III	C#	Medium
1071	Greatest Common Divisor of Strings	C#	Easy
1072	Flip Columns For Maximum Number of Equal Rows	C#	Medium
1073	Adding Two Negabinary Numbers	C#	Medium
1074	Number of Submatrices That Sum to Target	C#	Hard
1075	Project Employees I	C#	Easy
1076	Project Employees II	C#	Easy
1077	Project Employees III	C#	Medium
1078	Occurrences After Bigram	C#	Easy
1079	Letter Tile Possibilities	C#	Medium
1080	Insufficient Nodes in Root to Leaf Paths	C#	Medium
1081	Smallest Subsequence of Distinct Characters	C#	Medium
1082	Sales Analysis I	C#	Easy
1083	Sales Analysis II	C#	Easy
1084	Sales Analysis III	C#	Easy
1085	Sum of Digits in the Minimum Number	C#	Easy
1086	High Five	C#	Easy
1087	Brace Expansion	C#	Medium
1088	Confusing Number II	C#	Hard
1089	Duplicate Zeros	C#	Easy
1090	Largest Values From Labels	C#	Medium
1091	Shortest Path in Binary Matrix	C#	Medium
1092	Shortest Common Supersequence	C#	Hard
1093	Statistics from a Large Sample	C#	Medium
1094	Car Pooling	C#	Medium
1095	Find in Mountain Array	C#	Hard
1096	Brace Expansion II	C#	Hard
1097	Game Play Analysis V	C#	Hard
1098	Unpopular Books	C#	Medium
1099	Two Sum Less Than K	C#	Easy
1100	Find K-Length Substrings With No Repeated Characters	C#	Medium
1101	The Earliest Moment When Everyone Become Friends	C#	Medium
1102	Path With Maximum Minimum Value	C#	Medium
1103	Distribute Candies to People	C#	Easy
1104	Path In Zigzag Labelled Binary Tree	C#	Medium
1105	Filling Bookcase Shelves	C#	Medium
1106	Parsing A Boolean Expression	C#	Hard
1107	New Users Daily Count	C#	Medium
1108	Defanging an IP Address	C#	Easy
1109	Corporate Flight Bookings	C#	Medium
1110	Delete Nodes And Return Forest	C#	Medium
1111	Maximum Nesting Depth of Two Valid Parentheses Strings	C#	Medium
1112	Highest Grade For Each Student	C#	Medium
1113	Reported Posts	C#	Easy
1114	Print in Order	C#	Easy
1115	Print FooBar Alternately	C#	Medium
1116	Print Zero Even Odd	C#	Medium
1117	Building H2O	C#	Medium
1118	Number of Days in a Month	C#	Easy
1119	Remove Vowels from a String	C#	Easy
1120	Maximum Average Subtree	C#	Medium
1121	Divide Array Into Increasing Sequences	C#	Hard
1122	Relative Sort Array	C#	Easy
1123	Lowest Common Ancestor of Deepest Leaves	C#	Medium
1124	Longest Well-Performing Interval	C#	Medium
1125	Smallest Sufficient Team	C#	Hard
1126	Active Businesses	C#	Medium
1127	User Purchase Platform	C#	Hard
1128	Number of Equivalent Domino Pairs	C#	Easy
1129	Shortest Path with Alternating Colors	C#	Medium
1130	Minimum Cost Tree From Leaf Values	C#	Medium
1131	Maximum of Absolute Value Expression	C#	Medium
1132	Reported Posts II	C#	Medium
1133	Largest Unique Number	C#	Easy
1134	Armstrong Number	C#	Easy
1135	Connecting Cities With Minimum Cost	C#	Medium
1136	Parallel Courses	C#	Medium
1137	N-th Tribonacci Number	C#	Easy
1138	Alphabet Board Path	C#	Medium
1139	Largest 1-Bordered Square	C#	Medium
1140	Stone Game II	C#	Medium
1141	User Activity for the Past 30 Days I	C#	Easy
1142	User Activity for the Past 30 Days II	C#	Easy
1143	Longest Common Subsequence	C#	Medium
1144	Decrease Elements To Make Array Zigzag	C#	Medium
1145	Binary Tree Coloring Game	C#	Medium
1146	Snapshot Array	C#	Medium
1147	Longest Chunked Palindrome Decomposition	C#	Hard
1148	Article Views I	C#	Easy
1149	Article Views II	C#	Medium
1150	Check If a Number Is Majority Element in a Sorted Array	C#	Easy
1151	Minimum Swaps to Group All 1's Together	C#	Medium
1152	Analyze User Website Visit Pattern	C#	Medium
1153	String Transforms Into Another String	C#	Hard
1154	Day of the Year	C#	Easy
1155	Number of Dice Rolls With Target Sum	C#	Medium
1156	Swap For Longest Repeated Character Substring	C#	Medium
1157	Online Majority Element In Subarray	C#	Hard
1158	Market Analysis I	C#	Medium
1159	Market Analysis II	C#	Hard
1160	Find Words That Can Be Formed by Characters	C#	Easy
1161	Maximum Level Sum of a Binary Tree	C#	Medium
1162	As Far from Land as Possible	C#	Medium
1163	Last Substring in Lexicographical Order	C#	Hard
1164	Product Price at a Given Date	C#	Medium
1165	Single-Row Keyboard	C#	Easy
1166	Design File System	C#	Medium
1167	Minimum Cost to Connect Sticks	C#	Medium
1168	Optimize Water Distribution in a Village	C#	Hard
1169	Invalid Transactions	C#	Medium
1170	Compare Strings by Frequency of the Smallest Character	C#	Medium
1171	Remove Zero Sum Consecutive Nodes from Linked List	C#	Medium
1172	Dinner Plate Stacks	C#	Hard
1173	Immediate Food Delivery I	C#	Easy
1174	Immediate Food Delivery II	C#	Medium
1175	Prime Arrangements	C#	Easy
1176	Diet Plan Performance	C#	Easy
1177	Can Make Palindrome from Substring	C#	Medium
1178	Number of Valid Words for Each Puzzle	C#	Hard
1179	Reformat Department Table	C#	Easy
1180	Count Substrings with Only One Distinct Letter	C#	Easy
1181	Before and After Puzzle	C#	Medium
1182	Shortest Distance to Target Color	C#	Medium
1183	Maximum Number of Ones	C#	Hard
1184	Distance Between Bus Stops	C#	Easy
1185	Day of the Week	C#	Easy
1186	Maximum Subarray Sum with One Deletion	C#	Medium
1187	Make Array Strictly Increasing	C#	Hard
1188	Design Bounded Blocking Queue	C#	Medium
1189	Maximum Number of Balloons	C#	Easy
1190	Reverse Substrings Between Each Pair of Parentheses	C#	Medium
1191	K-Concatenation Maximum Sum	C#	Medium
1192	Critical Connections in a Network	C#	Hard
1193	Monthly Transactions I	C#	Medium
1194	Tournament Winners	C#	Hard
1195	Fizz Buzz Multithreaded	C#	Medium
1196	How Many Apples Can You Put into the Basket	C#	Easy
1197	Minimum Knight Moves	C#	Medium
1198	Find Smallest Common Element in All Rows	C#	Medium
1199	Minimum Time to Build Blocks	C#	Hard
1200	Minimum Absolute Difference	C#	Easy
1201	Ugly Number III	C#	Medium
1202	Smallest String With Swaps	C#	Medium
1203	Sort Items by Groups Respecting Dependencies	C#	Hard
1204	Last Person to Fit in the Bus	C#	Medium
1205	Monthly Transactions II	C#	Medium
1206	Design Skiplist	C#	Hard
1207	Unique Number of Occurrences	C#	Easy
1208	Get Equal Substrings Within Budget	C#	Medium
1209	Remove All Adjacent Duplicates in String II	C#	Medium
1210	Minimum Moves to Reach Target with Rotations	C#	Hard
1211	Queries Quality and Percentage	C#	Easy
1212	Team Scores in Football Tournament	C#	Medium
1213	Intersection of Three Sorted Arrays	C#	Easy
1214	Two Sum BSTs	C#	Medium
1215	Stepping Numbers	C#	Medium
1216	Valid Palindrome III	C#	Hard
1217	Minimum Cost to Move Chips to The Same Position	C#	Easy
1218	Longest Arithmetic Subsequence of Given Difference	C#	Medium
1219	Path with Maximum Gold	C#	Medium
1220	Count Vowels Permutation	C#	Hard
1221	Split a String in Balanced Strings	C#	Easy
1222	Queens That Can Attack the King	C#	Medium
1223	Dice Roll Simulation	C#	Hard
1224	Maximum Equal Frequency	C#	Hard
1225	Report Contiguous Dates	C#	Hard
1226	The Dining Philosophers	C#	Medium
1227	Airplane Seat Assignment Probability	C#	Medium
1228	Missing Number In Arithmetic Progression	C#	Easy
1229	Meeting Scheduler	C#	Medium
1230	Toss Strange Coins	C#	Medium
1231	Divide Chocolate	C#	Hard
1232	Check If It Is a Straight Line	C#	Easy
1233	Remove Sub-Folders from the Filesystem	C#	Medium
1234	Replace the Substring for Balanced String	C#	Medium
1235	Maximum Profit in Job Scheduling	C#	Hard
1236	Web Crawler	C#	Medium
1237	Find Positive Integer Solution for a Given Equation	C#	Medium
1238	Circular Permutation in Binary Representation	C#	Medium
1239	Maximum Length of a Concatenated String with Unique Characters	C#	Medium
1240	Tiling a Rectangle with the Fewest Squares	C#	Hard
1241	Number of Comments per Post	C#	Easy
1242	Web Crawler Multithreaded	C#	Medium
1243	Array Transformation	C#	Easy
1244	Design A Leaderboard	C#	Medium
1245	Tree Diameter	C#	Medium
1246	Palindrome Removal	C#	Hard
1247	Minimum Swaps to Make Strings Equal	C#	Medium
1248	Count Number of Nice Subarrays	C#	Medium
1249	Minimum Remove to Make Valid Parentheses	C#	Medium
1250	Check If It Is a Good Array	C#	Hard
1251	Average Selling Price	C#	Easy
1252	Cells with Odd Values in a Matrix	C#	Easy
1253	Reconstruct a 2-Row Binary Matrix	C#	Medium
1254	Number of Closed Islands	C#	Medium
1255	Maximum Score Words Formed by Letters	C#	Hard
1256	Encode Number	C#	Medium
1257	Smallest Common Region	C#	Medium
1258	Synonymous Sentences	C#	Medium
1259	Handshakes That Don't Cross	C#	Hard
1260	Shift 2D Grid	C#	Easy
1261	Find Elements in a Contaminated Binary Tree	C#	Medium
1262	Greatest Sum Divisible by Three	C#	Medium
1263	Minimum Moves to Move a Box to Their Target Location	C#	Hard
1264	Page Recommendations	C#	Medium
1265	Print Immutable Linked List in Reverse	C#	Medium
1266	Minimum Time Visiting All Points	C#	Easy
1267	Count Servers that Communicate	C#	Medium
1268	Search Suggestions System	C#	Medium
1269	Number of Ways to Stay in the Same Place After Some Steps	C#	Hard
1270	All People Report to the Given Manager	C#	Medium
1271	Hexspeak	C#	Easy
1272	Remove Interval	C#	Medium
1273	Delete Tree Nodes	C#	Medium
1274	Number of Ships in a Rectangle	C#	Hard
1275	Find Winner on a Tic Tac Toe Game	C#	Easy
1276	Number of Burgers with No Waste of Ingredients	C#	Medium
1277	Count Square Submatrices with All Ones	C#	Medium
1278	Palindrome Partitioning III	C#	Hard
1279	Traffic Light Controlled Intersection	C#	Easy
1280	Students and Examinations	C#	Easy
1281	Subtract the Product and Sum of Digits of an Integer	C#	Easy
1282	Group the People Given the Group Size They Belong To	C#	Medium
1283	Find the Smallest Divisor Given a Threshold	C#	Medium
1284	Minimum Number of Flips to Convert Binary Matrix to Zero Matrix	C#	Hard
1285	Find the Start and End Number of Continuous Ranges	C#	Medium
1286	Iterator for Combination	C#	Medium
1287	Element Appearing More Than 25% In Sorted Array	C#	Easy
1288	Remove Covered Intervals	C#	Medium
1289	Minimum Falling Path Sum II	C#	Hard
1290	Convert Binary Number in a Linked List to Integer	C#	Easy
1291	Sequential Digits	C#	Medium
1292	Maximum Side Length of a Square with Sum Less than or Equal to Threshold	C#	Medium
1293	Shortest Path in a Grid with Obstacles Elimination	C#	Hard
1294	Weather Type in Each Country	C#	Easy
1295	Find Numbers with Even Number of Digits	C#	Easy
1296	Divide Array in Sets of K Consecutive Numbers	C#	Medium
1297	Maximum Number of Occurrences of a Substring	C#	Medium
1298	Maximum Candies You Can Get from Boxes	C#	Hard
1299	Replace Elements with Greatest Element on Right Side	C#	Easy
1300	Sum of Mutated Array Closest to Target	C#	Medium
1301	Number of Paths with Max Score	C#	Hard
1302	Deepest Leaves Sum	C#	Medium
1303	Find the Team Size	C#	Easy
1304	Find N Unique Integers Sum up to Zero	C#	Easy
1305	All Elements in Two Binary Search Trees	C#	Medium
1306	Jump Game III	C#	Medium
1307	Verbal Arithmetic Puzzle	C#	Hard
1308	Running Total for Different Genders	C#	Medium
1309	Decrypt String from Alphabet to Integer Mapping	C#	Easy
1310	XOR Queries of a Subarray	C#	Medium
1311	Get Watched Videos by Your Friends	C#	Medium
1312	Minimum Insertion Steps to Make a String Palindrome	C#	Hard
1313	Decompress Run-Length Encoded List	C#	Easy
1314	Matrix Block Sum	C#	Medium
1315	Sum of Nodes with Even-Valued Grandparent	C#	Medium
1316	Distinct Echo Substrings	C#	Hard
1317	Convert Integer to the Sum of Two No-Zero Integers	C#	Easy
1318	Minimum Flips to Make a OR b Equal to c	C#	Medium
1319	Number of Operations to Make Network Connected	C#	Medium
1320	Minimum Distance to Type a Word Using Two Fingers	C#	Hard
1321	Restaurant Growth	C#	Medium
1322	Ads Performance	C#	Easy
1323	Maximum 69 Number	C#	Easy
1324	Print Words Vertically	C#	Medium
1325	Delete Leaves With a Given Value	C#	Medium
1326	Minimum Number of Taps to Open to Water a Garden	C#	Hard
1327	List the Products Ordered in a Period	C#	Easy
1328	Break a Palindrome	C#	Medium
1329	Sort the Matrix Diagonally	C#	Medium
1330	Reverse Subarray To Maximize Array Value	C#	Hard
1331	Rank Transform of an Array	C#	Easy
1332	Remove Palindromic Subsequences	C#	Easy
1333	Filter Restaurants by Vegan-Friendly, Price and Distance	C#	Medium
1334	Find the City With the Smallest Number of Neighbors at a Threshold Distance	C#	Medium
1335	Minimum Difficulty of a Job Schedule	C#	Hard
1336	Number of Transactions per Visit	C#	Hard
1337	The K Weakest Rows in a Matrix	C#	Easy
1338	Reduce Array Size to The Half	C#	Medium
1339	Maximum Product of Splitted Binary Tree	C#	Medium
1340	Jump Game V	C#	Hard
1341	Movie Rating	C#	Medium
1342	Number of Steps to Reduce a Number to Zero	C#	Easy
1343	Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold	C#	Medium
1344	Angle Between Hands of a Clock	C#	Medium
1345	Jump Game IV	C#	Hard
1346	Check If N and Its Double Exist	C#	Easy
1347	Minimum Number of Steps to Make Two Strings Anagram	C#	Medium
1348	Tweet Counts Per Frequency	C#	Medium
1349	Maximum Students Taking Exam	C#	Hard
1350	Students With Invalid Departments	C#	Easy
1351	Count Negative Numbers in a Sorted Matrix	C#	Easy
1352	Product of the Last K Numbers	C#	Medium
1353	Maximum Number of Events That Can Be Attended	C#	Medium
1354	Construct Target Array With Multiple Sums	C#	Hard
1355	Activity Participants	C#	Medium
1356	Sort Integers by The Number of 1 Bits	C#	Easy
1357	Apply Discount Every n Orders	C#	Medium
1358	Number of Substrings Containing All Three Characters	C#	Medium
1359	Count All Valid Pickup and Delivery Options	C#	Hard
1360	Number of Days Between Two Dates	C#	Easy
1361	Validate Binary Tree Nodes	C#	Medium
1362	Closest Divisors	C#	Medium
1363	Largest Multiple of Three	C#	Hard
1364	Number of Trusted Contacts of a Customer	C#	Medium
1365	How Many Numbers Are Smaller Than the Current Number	C#	Easy
1366	Rank Teams by Votes	C#	Medium
1367	Linked List in Binary Tree	C#	Medium
1368	Minimum Cost to Make at Least One Valid Path in a Grid	C#	Hard
1369	Get the Second Most Recent Activity	C#	Hard
1370	Increasing Decreasing String	C#	Easy
1371	Find the Longest Substring Containing Vowels in Even Counts	C#	Medium
1372	Longest ZigZag Path in a Binary Tree	C#	Medium
1373	Maximum Sum BST in Binary Tree	C#	Hard
1374	Generate a String With Characters That Have Odd Counts	C#	Easy
1375	Number of Times Binary String Is Prefix-Aligned	C#	Medium
1376	Time Needed to Inform All Employees	C#	Medium
1377	Frog Position After T Seconds	C#	Hard
1378	Replace Employee ID With The Unique Identifier	C#	Easy
1379	Find a Corresponding Node of a Binary Tree in a Clone of That Tree	C#	Easy
1380	Lucky Numbers in a Matrix	C#	Easy
1381	Design a Stack With Increment Operation	C#	Medium
1382	Balance a Binary Search Tree	C#	Medium
1383	Maximum Performance of a Team	C#	Hard
1384	Total Sales Amount by Year	C#	Hard
1385	Find the Distance Value Between Two Arrays	C#	Easy
1386	Cinema Seat Allocation	C#	Medium
1387	Sort Integers by The Power Value	C#	Medium
1388	Pizza With 3n Slices	C#	Hard
1389	Create Target Array in the Given Order	C#	Easy
1390	Four Divisors	C#	Medium
1391	Check if There is a Valid Path in a Grid	C#	Medium
1392	Longest Happy Prefix	C#	Hard
1393	Capital Gain/Loss	C#	Medium
1394	Find Lucky Integer in an Array	C#	Easy
1395	Count Number of Teams	C#	Medium
1396	Design Underground System	C#	Medium
1397	Find All Good Strings	C#	Hard
1398	Customers Who Bought Products A and B but Not C	C#	Medium
1399	Count Largest Group	C#	Easy
1400	Construct K Palindrome Strings	C#	Medium
1401	Circle and Rectangle Overlapping	C#	Medium
1402	Reducing Dishes	C#	Hard
1403	Minimum Subsequence in Non-Increasing Order	C#	Easy
1404	Number of Steps to Reduce a Number in Binary Representation to One	C#	Medium
1405	Longest Happy String	C#	Medium
1406	Stone Game III	C#	Hard
1407	Top Travellers	C#	Easy
1408	String Matching in an Array	C#	Easy
1409	Queries on a Permutation With Key	C#	Medium
1410	HTML Entity Parser	C#	Medium
1411	Number of Ways to Paint N × 3 Grid	C#	Hard
1412	Find the Quiet Students in All Exams	C#	Hard
1413	Minimum Value to Get Positive Step by Step Sum	C#	Easy
1414	Find the Minimum Number of Fibonacci Numbers Whose Sum Is K	C#	Medium
1415	The k-th Lexicographical String of All Happy Strings of Length n	C#	Medium
1416	Restore The Array	C#	Hard
1417	Reformat The String	C#	Easy
1418	Display Table of Food Orders in a Restaurant	C#	Medium
1419	Minimum Number of Frogs Croaking	C#	Medium
1420	Build Array Where You Can Find The Maximum Exactly K Comparisons	C#	Hard
1421	NPV Queries	C#	Easy
1422	Maximum Score After Splitting a String	C#	Easy
1423	Maximum Points You Can Obtain from Cards	C#	Medium
1424	Diagonal Traverse II	C#	Medium
1425	Constrained Subsequence Sum	C#	Hard
1426	Counting Elements	C#	Easy
1427	Perform String Shifts	C#	Easy
1428	Leftmost Column with at Least a One	C#	Medium
1429	First Unique Number	C#	Medium
1430	Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree	C#	Medium
1431	Kids With the Greatest Number of Candies	C#	Easy
1432	Max Difference You Can Get From Changing an Integer	C#	Medium
1433	Check If a String Can Break Another String	C#	Medium
1434	Number of Ways to Wear Different Hats to Each Other	C#	Hard
1435	Create a Session Bar Chart	C#	Easy
1436	Destination City	C#	Easy
1437	Check If All 1's Are at Least Length K Places Away	C#	Easy
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	C#	Medium
1439	Find the Kth Smallest Sum of a Matrix With Sorted Rows	C#	Hard
1440	Evaluate Boolean Expression	C#	Medium
1441	Build an Array With Stack Operations	C#	Medium
1442	Count Triplets That Can Form Two Arrays of Equal XOR	C#	Medium
1443	Minimum Time to Collect All Apples in a Tree	C#	Medium
1444	Number of Ways of Cutting a Pizza	C#	Hard
1445	Apples & Oranges	C#	Medium
1446	Consecutive Characters	C#	Easy
1447	Simplified Fractions	C#	Medium
1448	Count Good Nodes in Binary Tree	C#	Medium
1449	Form Largest Integer With Digits That Add up to Target	C#	Hard
1450	Number of Students Doing Homework at a Given Time	C#	Easy
1451	Rearrange Words in a Sentence	C#	Medium
1452	People Whose List of Favorite Companies Is Not a Subset of Another List	C#	Medium
1453	Maximum Number of Darts Inside of a Circular Dartboard	C#	Hard
1454	Active Users	C#	Medium
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	C#	Easy
1456	Maximum Number of Vowels in a Substring of Given Length	C#	Medium
1457	Pseudo-Palindromic Paths in a Binary Tree	C#	Medium
1458	Max Dot Product of Two Subsequences	C#	Hard
1459	Rectangles Area	C#	Medium
1460	Make Two Arrays Equal by Reversing Subarrays	C#	Easy
1461	Check If a String Contains All Binary Codes of Size K	C#	Medium
1462	Course Schedule IV	C#	Medium
1463	Cherry Pickup II	C#	Hard
1464	Maximum Product of Two Elements in an Array	C#	Easy
1465	Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	C#	Medium
1466	Reorder Routes to Make All Paths Lead to the City Zero	C#	Medium
1467	Probability of a Two Boxes Having The Same Number of Distinct Balls	C#	Hard
1468	Calculate Salaries	C#	Medium
1469	Find All The Lonely Nodes	C#	Easy
1470	Shuffle the Array	C#	Easy
1471	The k Strongest Values in an Array	C#	Medium
1472	Design Browser History	C#	Medium
1473	Paint House III	C#	Hard
1474	Delete N Nodes After M Nodes of a Linked List	C#	Easy
1475	Final Prices With a Special Discount in a Shop	C#	Easy
1476	Subrectangle Queries	C#	Medium
1477	Find Two Non-overlapping Sub-arrays Each With Target Sum	C#	Medium
1478	Allocate Mailboxes	C#	Hard
1479	Sales by Day of the Week	C#	Hard
1480	Running Sum of 1d Array	C#	Easy
1481	Least Number of Unique Integers after K Removals	C#	Medium
1482	Minimum Number of Days to Make m Bouquets	C#	Medium
1483	Kth Ancestor of a Tree Node	C#	Hard
1484	Group Sold Products By The Date	C#	Easy
1485	Clone Binary Tree With Random Pointer	C#	Medium
1486	XOR Operation in an Array	C#	Easy
1487	Making File Names Unique	C#	Medium
1488	Avoid Flood in The City	C#	Medium
1489	Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree	C#	Hard
1490	Clone N-ary Tree	C#	Medium
1491	Average Salary Excluding the Minimum and Maximum Salary	C#	Easy
1492	The kth Factor of n	C#	Medium
1493	Longest Subarray of 1's After Deleting One Element	C#	Medium
1494	Parallel Courses II	C#	Hard
1495	Friendly Movies Streamed Last Month	C#	Easy
1496	Path Crossing	C#	Easy
1497	Check If Array Pairs Are Divisible by k	C#	Medium
1498	Number of Subsequences That Satisfy the Given Sum Condition	C#	Medium
1499	Max Value of Equation	C#	Hard
1500	Design a File Sharing System	C#	Medium
1501	Countries You Can Safely Invest In	C#	Medium
1502	Can Make Arithmetic Progression From Sequence	C#	Easy
1503	Last Moment Before All Ants Fall Out of a Plank	C#	Medium
1504	Count Submatrices With All Ones	C#	Medium
1505	Minimum Possible Integer After at Most K Adjacent Swaps On Digits	C#	Hard
1506	Find Root of N-Ary Tree	C#	Medium
1507	Reformat Date	C#	Easy
1508	Range Sum of Sorted Subarray Sums	C#	Medium
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	C#	Medium
1510	Stone Game IV	C#	Hard
1511	Customer Order Frequency	C#	Easy
1512	Number of Good Pairs	C#	Easy
1513	Number of Substrings With Only 1s	C#	Medium
1514	Path with Maximum Probability	C#	Medium
1515	Best Position for a Service Centre	C#	Hard
1516	Move Sub-Tree of N-Ary Tree	C#	Hard
1517	Find Users With Valid E-Mails	C#	Easy
1518	Water Bottles	C#	Easy
1519	Number of Nodes in the Sub-Tree With the Same Label	C#	Medium
1520	Maximum Number of Non-Overlapping Substrings	C#	Hard
1521	Find a Value of a Mysterious Function Closest to Target	C#	Hard
1522	Diameter of N-Ary Tree	C#	Medium
1523	Count Odd Numbers in an Interval Range	C#	Easy
1524	Number of Sub-arrays With Odd Sum	C#	Medium
1525	Number of Good Ways to Split a String	C#	Medium
1526	Minimum Number of Increments on Subarrays to Form a Target Array	C#	Hard
1527	Patients With a Condition	C#	Easy
1528	Shuffle String	C#	Easy
1529	Minimum Suffix Flips	C#	Medium
1530	Number of Good Leaf Nodes Pairs	C#	Medium
1531	String Compression II	C#	Hard
1532	The Most Recent Three Orders	C#	Medium
1533	Find the Index of the Large Integer	C#	Medium
1534	Count Good Triplets	C#	Easy
1535	Find the Winner of an Array Game	C#	Medium
1536	Minimum Swaps to Arrange a Binary Grid	C#	Medium
1537	Get the Maximum Score	C#	Hard
1538	Guess the Majority in a Hidden Array	C#	Medium
1539	Kth Missing Positive Number	C#	Easy
1540	Can Convert String in K Moves	C#	Medium
1541	Minimum Insertions to Balance a Parentheses String	C#	Medium
1542	Find Longest Awesome Substring	C#	Hard
1543	Fix Product Name Format	C#	Easy
1544	Make The String Great	C#	Easy
1545	Find Kth Bit in Nth Binary String	C#	Medium
1546	Maximum Number of Non-Overlapping Subarrays With Sum Equals Target	C#	Medium
1547	Minimum Cost to Cut a Stick	C#	Hard
1548	The Most Similar Path in a Graph	C#	Hard
1549	The Most Recent Orders for Each Product	C#	Medium
1550	Three Consecutive Odds	C#	Easy
1551	Minimum Operations to Make Array Equal	C#	Medium
1552	Magnetic Force Between Two Balls	C#	Medium
1553	Minimum Number of Days to Eat N Oranges	C#	Hard
1554	Strings Differ by One Character	C#	Medium
1555	Bank Account Summary	C#	Medium
1556	Thousand Separator	C#	Easy
1557	Minimum Number of Vertices to Reach All Nodes	C#	Medium
1558	Minimum Numbers of Function Calls to Make Target Array	C#	Medium
1559	Detect Cycles in 2D Grid	C#	Medium
1560	Most Visited Sector in a Circular Track	C#	Easy
1561	Maximum Number of Coins You Can Get	C#	Medium
1562	Find Latest Group of Size M	C#	Medium
1563	Stone Game V	C#	Hard
1564	Put Boxes Into the Warehouse I	C#	Medium
1565	Unique Orders and Customers Per Month	C#	Easy
1566	Detect Pattern of Length M Repeated K or More Times	C#	Easy
1567	Maximum Length of Subarray With Positive Product	C#	Medium
1568	Minimum Number of Days to Disconnect Island	C#	Hard
1569	Number of Ways to Reorder Array to Get Same BST	C#	Hard
1570	Dot Product of Two Sparse Vectors	C#	Medium
1571	Warehouse Manager	C#	Easy
1572	Matrix Diagonal Sum	C#	Easy
1573	Number of Ways to Split a String	C#	Medium
1574	Shortest Subarray to be Removed to Make Array Sorted	C#	Medium
1575	Count All Possible Routes	C#	Hard
1576	Replace All ?'s to Avoid Consecutive Repeating Characters	C#	Easy
1577	Number of Ways Where Square of Number Is Equal to Product of Two Numbers	C#	Medium
1578	Minimum Time to Make Rope Colorful	C#	Medium
1579	Remove Max Number of Edges to Keep Graph Fully Traversable	C#	Hard
1580	Put Boxes Into the Warehouse II	C#	Medium
1581	Customer Who Visited but Did Not Make Any Transactions	C#	Easy
1582	Special Positions in a Binary Matrix	C#	Easy
1583	Count Unhappy Friends	C#	Medium
1584	Min Cost to Connect All Points	C#	Medium
1585	Check If String Is Transformable With Substring Sort Operations	C#	Hard
1586	Binary Search Tree Iterator II	C#	Medium
1587	Bank Account Summary II	C#	Easy
1588	Sum of All Odd Length Subarrays	C#	Easy
1589	Maximum Sum Obtained of Any Permutation	C#	Medium
1590	Make Sum Divisible by P	C#	Medium
1591	Strange Printer II	C#	Hard
1592	Rearrange Spaces Between Words	C#	Easy
1593	Split a String Into the Max Number of Unique Substrings	C#	Medium
1594	Maximum Non Negative Product in a Matrix	C#	Medium
1595	Minimum Cost to Connect Two Groups of Points	C#	Hard
1596	The Most Frequently Ordered Products for Each Customer	C#	Medium
1597	Build Binary Expression Tree From Infix Expression	C#	Hard
1598	Crawler Log Folder	C#	Easy
1599	Maximum Profit of Operating a Centennial Wheel	C#	Medium
1600	Throne Inheritance	C#	Medium
1601	Maximum Number of Achievable Transfer Requests	C#	Hard
1602	Find Nearest Right Node in Binary Tree	C#	Medium
1603	Design Parking System	C#	Easy
1604	Alert Using Same Key-Card Three or More Times in a One Hour Period	C#	Medium
1605	Find Valid Matrix Given Row and Column Sums	C#	Medium
1606	Find Servers That Handled Most Number of Requests	C#	Hard
1607	Sellers With No Sales	C#	Easy
1608	Special Array With X Elements Greater Than or Equal X	C#	Easy
1609	Even Odd Tree	C#	Medium
1610	Maximum Number of Visible Points	C#	Hard
1611	Minimum One Bit Operations to Make Integers Zero	C#	Hard
1612	Check If Two Expression Trees are Equivalent	C#	Medium
1613	Find the Missing IDs	C#	Medium
1614	Maximum Nesting Depth of the Parentheses	C#	Easy
1615	Maximal Network Rank	C#	Medium
1616	Split Two Strings to Make Palindrome	C#	Medium
1617	Count Subtrees With Max Distance Between Cities	C#	Hard
1618	Maximum Font to Fit a Sentence in a Screen	C#	Medium
1619	Mean of Array After Removing Some Elements	C#	Easy
1620	Coordinate With Maximum Network Quality	C#	Medium
1621	Number of Sets of K Non-Overlapping Line Segments	C#	Medium
1622	Fancy Sequence	C#	Hard
1623	All Valid Triplets That Can Represent a Country	C#	Easy
1624	Largest Substring Between Two Equal Characters	C#	Easy
1625	Lexicographically Smallest String After Applying Operations	C#	Medium
1626	Best Team With No Conflicts	C#	Medium
1627	Graph Connectivity With Threshold	C#	Hard
1628	Design an Expression Tree With Evaluate Function	C#	Medium
1629	Slowest Key	C#	Easy
1630	Arithmetic Subarrays	C#	Medium
1631	Path With Minimum Effort	C#	Medium
1632	Rank Transform of a Matrix	C#	Hard
1633	Percentage of Users Attended a Contest	C#	Easy
1634	Add Two Polynomials Represented as Linked Lists	C#	Medium
1635	Hopper Company Queries I	C#	Hard
1636	Sort Array by Increasing Frequency	C#	Easy
1637	Widest Vertical Area Between Two Points Containing No Points	C#	Easy
1638	Count Substrings That Differ by One Character	C#	Medium
1639	Number of Ways to Form a Target String Given a Dictionary	C#	Hard
1640	Check Array Formation Through Concatenation	C#	Easy
1641	Count Sorted Vowel Strings	C#	Medium
1642	Furthest Building You Can Reach	C#	Medium
1643	Kth Smallest Instructions	C#	Hard
1644	Lowest Common Ancestor of a Binary Tree II	C#	Medium
1645	Hopper Company Queries II	C#	Hard
1646	Get Maximum in Generated Array	C#	Easy
1647	Minimum Deletions to Make Character Frequencies Unique	C#	Medium
1648	Sell Diminishing-Valued Colored Balls	C#	Medium
1649	Create Sorted Array through Instructions	C#	Hard
1650	Lowest Common Ancestor of a Binary Tree III	C#	Medium
1651	Hopper Company Queries III	C#	Hard
1652	Defuse the Bomb	C#	Easy
1653	Minimum Deletions to Make String Balanced	C#	Medium
1654	Minimum Jumps to Reach Home	C#	Medium
1655	Distribute Repeating Integers	C#	Hard
1656	Design an Ordered Stream	C#	Easy
1657	Determine if Two Strings Are Close	C#	Medium
1658	Minimum Operations to Reduce X to Zero	C#	Medium
1659	Maximize Grid Happiness	C#	Hard
1660	Correct a Binary Tree	C#	Medium
1661	Average Time of Process per Machine	C#	Easy
1662	Check If Two String Arrays are Equivalent	C#	Easy
1663	Smallest String With A Given Numeric Value	C#	Medium
1664	Ways to Make a Fair Array	C#	Medium
1665	Minimum Initial Energy to Finish Tasks	C#	Hard
1666	Change the Root of a Binary Tree	C#	Medium
1667	Fix Names in a Table	C#	Easy
1668	Maximum Repeating Substring	C#	Easy
1669	Merge In Between Linked Lists	C#	Medium
1670	Design Front Middle Back Queue	C#	Medium
1671	Minimum Number of Removals to Make Mountain Array	C#	Hard
1672	Richest Customer Wealth	C#	Easy
1673	Find the Most Competitive Subsequence	C#	Medium
1674	Minimum Moves to Make Array Complementary	C#	Medium
1675	Minimize Deviation in Array	C#	Hard
1676	Lowest Common Ancestor of a Binary Tree IV	C#	Medium
1677	Product's Worth Over Invoices	C#	Easy
1678	Goal Parser Interpretation	C#	Easy
1679	Max Number of K-Sum Pairs	C#	Medium
1680	Concatenation of Consecutive Binary Numbers	C#	Medium
1681	Minimum Incompatibility	C#	Hard
1682	Longest Palindromic Subsequence II	C#	Medium
1683	Invalid Tweets	C#	Easy
1684	Count the Number of Consistent Strings	C#	Easy
1685	Sum of Absolute Differences in a Sorted Array	C#	Medium
1686	Stone Game VI	C#	Medium
1687	Delivering Boxes from Storage to Ports	C#	Hard
1688	Count of Matches in Tournament	C#	Easy
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	C#	Medium
1690	Stone Game VII	C#	Medium
1691	Maximum Height by Stacking Cuboids	C#	Hard
1692	Count Ways to Distribute Candies	C#	Hard
1693	Daily Leads and Partners	C#	Easy
1694	Reformat Phone Number	C#	Easy
1695	Maximum Erasure Value	C#	Medium
1696	Jump Game VI	C#	Medium
1697	Checking Existence of Edge Length Limited Paths	C#	Hard
1698	Number of Distinct Substrings in a String	C#	Medium
1699	Number of Calls Between Two Persons	C#	Medium
1700	Number of Students Unable to Eat Lunch	C#	Easy
1701	Average Waiting Time	C#	Medium
1702	Maximum Binary String After Change	C#	Medium
1703	Minimum Adjacent Swaps for K Consecutive Ones	C#	Hard
1704	Determine if String Halves Are Alike	C#	Easy
1705	Maximum Number of Eaten Apples	C#	Medium
1706	Where Will the Ball Fall	C#	Medium
1707	Maximum XOR With an Element From Array	C#	Hard
1708	Largest Subarray Length K	C#	Easy
1709	Biggest Window Between Visits	C#	Medium
1710	Maximum Units on a Truck	C#	Easy
1711	Count Good Meals	C#	Medium
1712	Ways to Split Array Into Three Subarrays	C#	Medium
1713	Minimum Operations to Make a Subsequence	C#	Hard
1714	Sum Of Special Evenly-Spaced Elements In Array	C#	Hard
1715	Count Apples and Oranges	C#	Medium
1716	Calculate Money in Leetcode Bank	C#	Easy
1717	Maximum Score From Removing Substrings	C#	Medium
1718	Construct the Lexicographically Largest Valid Sequence	C#	Medium
1719	Number Of Ways To Reconstruct A Tree	C#	Hard
1720	Decode XORed Array	C#	Easy
1721	Swapping Nodes in a Linked List	C#	Medium
1722	Minimize Hamming Distance After Swap Operations	C#	Medium
1723	Find Minimum Time to Finish All Jobs	C#	Hard
1724	Checking Existence of Edge Length Limited Paths II	C#	Hard
1725	Number Of Rectangles That Can Form The Largest Square	C#	Easy
1726	Tuple with Same Product	C#	Medium
1727	Largest Submatrix With Rearrangements	C#	Medium
1728	Cat and Mouse II	C#	Hard
1729	Find Followers Count	C#	Easy
1730	Shortest Path to Get Food	C#	Medium
1731	The Number of Employees Which Report to Each Employee	C#	Easy
1732	Find the Highest Altitude	C#	Easy
1733	Minimum Number of People to Teach	C#	Medium
1734	Decode XORed Permutation	C#	Medium
1735	Count Ways to Make Array With Product	C#	Hard
1736	Latest Time by Replacing Hidden Digits	C#	Easy
1737	Change Minimum Characters to Satisfy One of Three Conditions	C#	Medium
1738	Find Kth Largest XOR Coordinate Value	C#	Medium
1739	Building Boxes	C#	Hard
1740	Find Distance in a Binary Tree	C#	Medium
1741	Find Total Time Spent by Each Employee	C#	Easy
1742	Maximum Number of Balls in a Box	C#	Easy
1743	Restore the Array From Adjacent Pairs	C#	Medium
1744	Can You Eat Your Favorite Candy on Your Favorite Day?	C#	Medium
1745	Palindrome Partitioning IV	C#	Hard
1746	Maximum Subarray Sum After One Operation	C#	Medium
1747	Leetflex Banned Accounts	C#	Medium
1748	Sum of Unique Elements	C#	Easy
1749	Maximum Absolute Sum of Any Subarray	C#	Medium
1750	Minimum Length of String After Deleting Similar Ends	C#	Medium
1751	Maximum Number of Events That Can Be Attended II	C#	Hard
1752	Check if Array Is Sorted and Rotated	C#	Easy
1753	Maximum Score From Removing Stones	C#	Medium
1754	Largest Merge Of Two Strings	C#	Medium
1755	Closest Subsequence Sum	C#	Hard
1756	Design Most Recently Used Queue	C#	Medium
1757	Recyclable and Low Fat Products	C#	Easy
1758	Minimum Changes To Make Alternating Binary String	C#	Easy
1759	Count Number of Homogenous Substrings	C#	Medium
1760	Minimum Limit of Balls in a Bag	C#	Medium
1761	Minimum Degree of a Connected Trio in a Graph	C#	Hard
1762	Buildings With an Ocean View	C#	Medium
1763	Longest Nice Substring	C#	Easy
1764	Form Array by Concatenating Subarrays of Another Array	C#	Medium
1765	Map of Highest Peak	C#	Medium
1766	Tree of Coprimes	C#	Hard
1767	Find the Subtasks That Did Not Execute	C#	Hard
1768	Merge Strings Alternately	C#	Easy
1769	Minimum Number of Operations to Move All Balls to Each Box	C#	Medium
1770	Maximum Score from Performing Multiplication Operations	C#	Hard
1771	Maximize Palindrome Length From Subsequences	C#	Hard
1772	Sort Features by Popularity	C#	Medium
1773	Count Items Matching a Rule	C#	Easy
1774	Closest Dessert Cost	C#	Medium
1775	Equal Sum Arrays With Minimum Number of Operations	C#	Medium
1776	Car Fleet II	C#	Hard
1777	Product's Price for Each Store	C#	Easy
1778	Shortest Path in a Hidden Grid	C#	Medium
1779	Find Nearest Point That Has the Same X or Y Coordinate	C#	Easy
1780	Check if Number is a Sum of Powers of Three	C#	Medium
1781	Sum of Beauty of All Substrings	C#	Medium
1782	Count Pairs Of Nodes	C#	Hard
1783	Grand Slam Titles	C#	Medium
1784	Check if Binary String Has at Most One Segment of Ones	C#	Easy
1785	Minimum Elements to Add to Form a Given Sum	C#	Medium
1786	Number of Restricted Paths From First to Last Node	C#	Medium
1787	Make the XOR of All Segments Equal to Zero	C#	Hard
1788	Maximize the Beauty of the Garden	C#	Hard
1789	Primary Department for Each Employee	C#	Easy
1790	Check if One String Swap Can Make Strings Equal	C#	Easy
1791	Find Center of Star Graph	C#	Easy
1792	Maximum Average Pass Ratio	C#	Medium
1793	Maximum Score of a Good Subarray	C#	Hard
1794	Count Pairs of Equal Substrings With Minimum Difference	C#	Medium
1795	Rearrange Products Table	C#	Easy
1796	Second Largest Digit in a String	C#	Easy
1797	Design Authentication Manager	C#	Medium
1798	Maximum Number of Consecutive Values You Can Make	C#	Medium
1799	Maximize Score After N Operations	C#	Hard
1800	Maximum Ascending Subarray Sum	C#	Easy
1801	Number of Orders in the Backlog	C#	Medium
1802	Maximum Value at a Given Index in a Bounded Array	C#	Medium
1803	Count Pairs With XOR in a Range	C#	Hard
1804	Implement Trie II (Prefix Tree)	C#	Medium
1805	Number of Different Integers in a String	C#	Easy
1806	Minimum Number of Operations to Reinitialize a Permutation	C#	Medium
1807	Evaluate the Bracket Pairs of a String	C#	Medium
1808	Maximize Number of Nice Divisors	C#	Hard
1809	Ad-Free Sessions	C#	Easy
1810	Minimum Path Cost in a Hidden Grid	C#	Medium
1811	Find Interview Candidates	C#	Medium
1812	Determine Color of a Chessboard Square	C#	Easy
1813	Sentence Similarity III	C#	Medium
1814	Count Nice Pairs in an Array	C#	Medium
1815	Maximum Number of Groups Getting Fresh Donuts	C#	Hard
1816	Truncate Sentence	C#	Easy
1817	Finding the Users Active Minutes	C#	Medium
1818	Minimum Absolute Sum Difference	C#	Medium
1819	Number of Different Subsequences GCDs	C#	Hard
1820	Maximum Number of Accepted Invitations	C#	Medium
1821	Find Customers With Positive Revenue this Year	C#	Easy
1822	Sign of the Product of an Array	C#	Easy
1823	Find the Winner of the Circular Game	C#	Medium
1824	Minimum Sideway Jumps	C#	Medium
1825	Finding MK Average	C#	Hard
1826	Faulty Sensor	C#	Easy
1827	Minimum Operations to Make the Array Increasing	C#	Easy
1828	Queries on Number of Points Inside a Circle	C#	Medium
1829	Maximum XOR for Each Query	C#	Medium
1830	Minimum Number of Operations to Make String Sorted	C#	Hard
1831	Maximum Transaction Each Day	C#	Medium
1832	Check if the Sentence Is Pangram	C#	Easy
1833	Maximum Ice Cream Bars	C#	Medium
1834	Single-Threaded CPU	C#	Medium
1835	Find XOR Sum of All Pairs Bitwise AND	C#	Hard
1836	Remove Duplicates From an Unsorted Linked List	C#	Medium
1837	Sum of Digits in Base K	C#	Easy
1838	Frequency of the Most Frequent Element	C#	Medium
1839	Longest Substring Of All Vowels in Order	C#	Medium
1840	Maximum Building Height	C#	Hard
1841	League Statistics	C#	Medium
1842	Next Palindrome Using Same Digits	C#	Hard
1843	Suspicious Bank Accounts	C#	Medium
1844	Replace All Digits with Characters	C#	Easy
1845	Seat Reservation Manager	C#	Medium
1846	Maximum Element After Decreasing and Rearranging	C#	Medium
1847	Closest Room	C#	Hard
1848	Minimum Distance to the Target Element	C#	Easy
1849	Splitting a String Into Descending Consecutive Values	C#	Medium
1850	Minimum Adjacent Swaps to Reach the Kth Smallest Number	C#	Medium
1851	Minimum Interval to Include Each Query	C#	Hard
1852	Distinct Numbers in Each Subarray	C#	Medium
1853	Convert Date Format	C#	Easy
1854	Maximum Population Year	C#	Easy
1855	Maximum Distance Between a Pair of Values	C#	Medium
1856	Maximum Subarray Min-Product	C#	Medium
1857	Largest Color Value in a Directed Graph	C#	Hard
1858	Longest Word With All Prefixes	C#	Medium
1859	Sorting the Sentence	C#	Easy
1860	Incremental Memory Leak	C#	Medium
1861	Rotating the Box	C#	Medium
1862	Sum of Floored Pairs	C#	Hard
1863	Sum of All Subset XOR Totals	C#	Easy
1864	Minimum Number of Swaps to Make the Binary String Alternating	C#	Medium
1865	Finding Pairs With a Certain Sum	C#	Medium
1866	Number of Ways to Rearrange Sticks With K Sticks Visible	C#	Hard
1867	Orders With Maximum Quantity Above Average	C#	Medium
1868	Product of Two Run-Length Encoded Arrays	C#	Medium
1869	Longer Contiguous Segments of Ones than Zeros	C#	Easy
1870	Minimum Speed to Arrive on Time	C#	Medium
1871	Jump Game VII	C#	Medium
1872	Stone Game VIII	C#	Hard
1873	Calculate Special Bonus	C#	Easy
1874	Minimize Product Sum of Two Arrays	C#	Medium
1875	Group Employees of the Same Salary	C#	Medium
1876	Substrings of Size Three with Distinct Characters	C#	Easy
1877	Minimize Maximum Pair Sum in Array	C#	Medium
1878	Get Biggest Three Rhombus Sums in a Grid	C#	Medium
1879	Minimum XOR Sum of Two Arrays	C#	Hard
1880	Check if Word Equals Summation of Two Words	C#	Easy
1881	Maximum Value after Insertion	C#	Medium
1882	Process Tasks Using Servers	C#	Medium
1883	Minimum Skips to Arrive at Meeting On Time	C#	Hard
1884	Egg Drop With 2 Eggs and N Floors	C#	Medium
1885	Count Pairs in Two Arrays	C#	Medium
1886	Determine Whether Matrix Can Be Obtained By Rotation	C#	Easy
1887	Reduction Operations to Make the Array Elements Equal	C#	Medium
1888	Minimum Number of Flips to Make the Binary String Alternating	C#	Medium
1889	Minimum Space Wasted From Packaging	C#	Hard
1890	The Latest Login in 2020	C#	Easy
1891	Cutting Ribbons	C#	Medium
1892	Page Recommendations II	C#	Hard
1893	Check if All the Integers in a Range Are Covered	C#	Easy
1894	Find the Student that Will Replace the Chalk	C#	Medium
1895	Largest Magic Square	C#	Medium
1896	Minimum Cost to Change the Final Value of Expression	C#	Hard
1897	Redistribute Characters to Make All Strings Equal	C#	Easy
1898	Maximum Number of Removable Characters	C#	Medium
1899	Merge Triplets to Form Target Triplet	C#	Medium
1900	The Earliest and Latest Rounds Where Players Compete	C#	Hard
1901	Find a Peak Element II	C#	Medium
1902	Depth of BST Given Insertion Order	C#	Medium
1903	Largest Odd Number in String	C#	Easy
1904	The Number of Full Rounds You Have Played	C#	Medium
1905	Count Sub Islands	C#	Medium
1906	Minimum Absolute Difference Queries	C#	Medium
1907	Count Salary Categories	C#	Medium
1908	Game of Nim	C#	Medium
1909	Remove One Element to Make the Array Strictly Increasing	C#	Easy
1910	Remove All Occurrences of a Substring	C#	Medium
1911	Maximum Alternating Subsequence Sum	C#	Medium
1912	Design Movie Rental System	C#	Hard
1913	Maximum Product Difference Between Two Pairs	C#	Easy
1914	Cyclically Rotating a Grid	C#	Medium
1915	Number of Wonderful Substrings	C#	Medium
1916	Count Ways to Build Rooms in an Ant Colony	C#	Hard
1917	Leetcodify Friends Recommendations	C#	Hard
1918	Kth Smallest Subarray Sum	C#	Medium
1919	Leetcodify Similar Friends	C#	Hard
1920	Build Array from Permutation	C#	Easy
1921	Eliminate Maximum Number of Monsters	C#	Medium
1922	Count Good Numbers	C#	Medium
1923	Longest Common Subpath	C#	Hard
1924	Erect the Fence II	C#	Hard
1925	Count Square Sum Triples	C#	Easy
1926	Nearest Exit from Entrance in Maze	C#	Medium
1927	Sum Game	C#	Medium
1928	Minimum Cost to Reach Destination in Time	C#	Hard
1929	Concatenation of Array	C#	Easy
1930	Unique Length-3 Palindromic Subsequences	C#	Medium
1931	Painting a Grid With Three Different Colors	C#	Hard
1932	Merge BSTs to Create Single BST	C#	Hard
1933	Check if String Is Decomposable Into Value-Equal Substrings	C#	Easy
1934	Confirmation Rate	C#	Medium
1935	Maximum Number of Words You Can Type	C#	Easy
1936	Add Minimum Number of Rungs	C#	Medium
1937	Maximum Number of Points with Cost	C#	Medium
1938	Maximum Genetic Difference Query	C#	Hard
1939	Users That Actively Request Confirmation Messages	C#	Easy
1940	Longest Common Subsequence Between Sorted Arrays	C#	Medium
1941	Check if All Characters Have Equal Number of Occurrences	C#	Easy
1942	The Number of the Smallest Unoccupied Chair	C#	Medium
1943	Describe the Painting	C#	Medium
1944	Number of Visible People in a Queue	C#	Hard
1945	Sum of Digits of String After Convert	C#	Easy
1946	Largest Number After Mutating Substring	C#	Medium
1947	Maximum Compatibility Score Sum	C#	Medium
1948	Delete Duplicate Folders in System	C#	Hard
1949	Strong Friendship	C#	Medium
1950	Maximum of Minimum Values in All Subarrays	C#	Medium
1951	All the Pairs With the Maximum Number of Common Followers	C#	Medium
1952	Three Divisors	C#	Easy
1953	Maximum Number of Weeks for Which You Can Work	C#	Medium
1954	Minimum Garden Perimeter to Collect Enough Apples	C#	Medium
1955	Count Number of Special Subsequences	C#	Hard
1956	Minimum Time For K Virus Variants to Spread	C#	Hard
1957	Delete Characters to Make Fancy String	C#	Easy
1958	Check if Move is Legal	C#	Medium
1959	Minimum Total Space Wasted With K Resizing Operations	C#	Medium
1960	Maximum Product of the Length of Two Palindromic Substrings	C#	Hard
1961	Check If String Is a Prefix of Array	C#	Easy
1962	Remove Stones to Minimize the Total	C#	Medium
1963	Minimum Number of Swaps to Make the String Balanced	C#	Medium
1964	Find the Longest Valid Obstacle Course at Each Position	C#	Hard
1965	Employees With Missing Information	C#	Easy
1966	Binary Searchable Numbers in an Unsorted Array	C#	Medium
1967	Number of Strings That Appear as Substrings in Word	C#	Easy
1968	Array With Elements Not Equal to Average of Neighbors	C#	Medium
1969	Minimum Non-Zero Product of the Array Elements	C#	Medium
1970	Last Day Where You Can Still Cross	C#	Hard
1971	Find if Path Exists in Graph	C#	Easy
1972	First and Last Call On the Same Day	C#	Hard
1973	Count Nodes Equal to Sum of Descendants	C#	Medium
1974	Minimum Time to Type Word Using Special Typewriter	C#	Easy
1975	Maximum Matrix Sum	C#	Medium
1976	Number of Ways to Arrive at Destination	C#	Medium
1977	Number of Ways to Separate Numbers	C#	Hard
1978	Employees Whose Manager Left the Company	C#	Easy
1979	Find Greatest Common Divisor of Array	C#	Easy
1980	Find Unique Binary String	C#	Medium
1981	Minimize the Difference Between Target and Chosen Elements	C#	Medium
1982	Find Array Given Subset Sums	C#	Hard
1983	Widest Pair of Indices With Equal Range Sum	C#	Medium
1984	Minimum Difference Between Highest and Lowest of K Scores	C#	Easy
1985	Find the Kth Largest Integer in the Array	C#	Medium
1986	Minimum Number of Work Sessions to Finish the Tasks	C#	Medium
1987	Number of Unique Good Subsequences	C#	Hard
1988	Find Cutoff Score for Each School	C#	Medium
1989	Maximum Number of People That Can Be Caught in Tag	C#	Medium
1990	Count the Number of Experiments	C#	Medium
1991	Find the Middle Index in Array	C#	Easy
1992	Find All Groups of Farmland	C#	Medium
1993	Operations on Tree	C#	Medium
1994	The Number of Good Subsets	C#	Hard
1995	Count Special Quadruplets	C#	Easy
1996	The Number of Weak Characters in the Game	C#	Medium
1997	First Day Where You Have Been in All the Rooms	C#	Medium
1998	GCD Sort of an Array	C#	Hard
1999	Smallest Greater Multiple Made of Two Digits	C#	Medium
2000	Reverse Prefix of Word	C#	Easy
2001	Number of Pairs of Interchangeable Rectangles	C#	Medium
2002	Maximum Product of the Length of Two Palindromic Subsequences	C#	Medium
2003	Smallest Missing Genetic Value in Each Subtree	C#	Hard
2004	The Number of Seniors and Juniors to Join the Company	C#	Hard
2005	Subtree Removal Game with Fibonacci Tree	C#	Hard
2006	Count Number of Pairs With Absolute Difference K	C#	Easy
2007	Find Original Array From Doubled Array	C#	Medium
2008	Maximum Earnings From Taxi	C#	Medium
2009	Minimum Number of Operations to Make Array Continuous	C#	Hard
2010	The Number of Seniors and Juniors to Join the Company II	C#	Hard
2011	Final Value of Variable After Performing Operations	C#	Easy
2012	Sum of Beauty in the Array	C#	Medium
2013	Detect Squares	C#	Medium
2014	Longest Subsequence Repeated k Times	C#	Hard
2015	Average Height of Buildings in Each Segment	C#	Medium
2016	Maximum Difference Between Increasing Elements	C#	Easy
2017	Grid Game	C#	Medium
2018	Check if Word Can Be Placed In Crossword	C#	Medium
2019	The Score of Students Solving Math Expression	C#	Hard
2020	Number of Accounts That Did Not Stream	C#	Medium
2021	Brightest Position on Street	C#	Medium
2022	Convert 1D Array Into 2D Array	C#	Easy
2023	Number of Pairs of Strings With Concatenation Equal to Target	C#	Medium
2024	Maximize the Confusion of an Exam	C#	Medium
2025	Maximum Number of Ways to Partition an Array	C#	Hard
2026	Low-Quality Problems	C#	Easy
2027	Minimum Moves to Convert String	C#	Easy
2028	Find Missing Observations	C#	Medium
2029	Stone Game IX	C#	Medium
2030	Smallest K-Length Subsequence With Occurrences of a Letter	C#	Hard
2031	Count Subarrays With More Ones Than Zeros	C#	Medium
2032	Two Out of Three	C#	Easy
2033	Minimum Operations to Make a Uni-Value Grid	C#	Medium
2034	Stock Price Fluctuation	C#	Medium
2035	Partition Array Into Two Arrays to Minimize Sum Difference	C#	Hard
2036	Maximum Alternating Subarray Sum	C#	Medium
2037	Minimum Number of Moves to Seat Everyone	C#	Easy
2038	Remove Colored Pieces if Both Neighbors are the Same Color	C#	Medium
2039	The Time When the Network Becomes Idle	C#	Medium
2040	Kth Smallest Product of Two Sorted Arrays	C#	Hard
2041	Accepted Candidates From the Interviews	C#	Medium
2042	Check if Numbers Are Ascending in a Sentence	C#	Easy
2043	Simple Bank System	C#	Medium
2044	Count Number of Maximum Bitwise-OR Subsets	C#	Medium
2045	Second Minimum Time to Reach Destination	C#	Hard
2046	Sort Linked List Already Sorted Using Absolute Values	C#	Medium
2047	Number of Valid Words in a Sentence	C#	Easy
2048	Next Greater Numerically Balanced Number	C#	Medium
2049	Count Nodes With the Highest Score	C#	Medium
2050	Parallel Courses III	C#	Hard
2051	The Category of Each Member in the Store	C#	Medium
2052	Minimum Cost to Separate Sentence Into Rows	C#	Medium
2053	Kth Distinct String in an Array	C#	Easy
2054	Two Best Non-Overlapping Events	C#	Medium
2055	Plates Between Candles	C#	Medium
2056	Number of Valid Move Combinations On Chessboard	C#	Hard
2057	Smallest Index With Equal Value	C#	Easy
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points	C#	Medium
2059	Minimum Operations to Convert Number	C#	Medium
2060	Check if an Original String Exists Given Two Encoded Strings	C#	Hard
2061	Number of Spaces Cleaning Robot Cleaned	C#	Medium
2062	Count Vowel Substrings of a String	C#	Easy
2063	Vowels of All Substrings	C#	Medium
2064	Minimized Maximum of Products Distributed to Any Store	C#	Medium
2065	Maximum Path Quality of a Graph	C#	Hard
2066	Account Balance	C#	Medium
2067	Number of Equal Count Substrings	C#	Medium
2068	Check Whether Two Strings are Almost Equivalent	C#	Easy
2069	Walking Robot Simulation II	C#	Medium
2070	Most Beautiful Item for Each Query	C#	Medium
2071	Maximum Number of Tasks You Can Assign	C#	Hard
2072	The Winner University	C#	Easy
2073	Time Needed to Buy Tickets	C#	Easy
2074	Reverse Nodes in Even Length Groups	C#	Medium
2075	Decode the Slanted Ciphertext	C#	Medium
2076	Process Restricted Friend Requests	C#	Hard
2077	Paths in Maze That Lead to Same Room	C#	Medium
2078	Two Furthest Houses With Different Colors	C#	Easy
2079	Watering Plants	C#	Medium
2080	Range Frequency Queries	C#	Medium
2081	Sum of k-Mirror Numbers	C#	Hard
2082	The Number of Rich Customers	C#	Easy
2083	Substrings That Begin and End With the Same Letter	C#	Medium
2084	Drop Type 1 Orders for Customers With Type 0 Orders	C#	Medium
2085	Count Common Words With One Occurrence	C#	Easy
2086	Minimum Number of Food Buckets to Feed the Hamsters	C#	Medium
2087	Minimum Cost Homecoming of a Robot in a Grid	C#	Medium
2088	Count Fertile Pyramids in a Land	C#	Hard
2089	Find Target Indices After Sorting Array	C#	Easy
2090	K Radius Subarray Averages	C#	Medium
2091	Removing Minimum and Maximum From Array	C#	Medium
2092	Find All People With Secret	C#	Hard
2093	Minimum Cost to Reach City With Discounts	C#	Medium
2094	Finding 3-Digit Even Numbers	C#	Easy
2095	Delete the Middle Node of a Linked List	C#	Medium
2096	Step-By-Step Directions From a Binary Tree Node to Another	C#	Medium
2097	Valid Arrangement of Pairs	C#	Hard
2098	Subsequence of Size K With the Largest Even Sum	C#	Medium
2099	Find Subsequence of Length K With the Largest Sum	C#	Easy
2100	Find Good Days to Rob the Bank	C#	Medium
2101	Detonate the Maximum Bombs	C#	Medium
2102	Sequentially Ordinal Rank Tracker	C#	Hard
2103	Rings and Rods	C#	Easy
2104	Sum of Subarray Ranges	C#	Medium
2105	Watering Plants II	C#	Medium
2106	Maximum Fruits Harvested After at Most K Steps	C#	Hard
2107	Number of Unique Flavors After Sharing K Candies	C#	Medium
2108	Find First Palindromic String in the Array	C#	Easy
2109	Adding Spaces to a String	C#	Medium
2110	Number of Smooth Descent Periods of a Stock	C#	Medium
2111	Minimum Operations to Make the Array K-Increasing	C#	Hard
2112	The Airport With the Most Traffic	C#	Medium
2113	Elements in Array After Removing and Replacing Elements	C#	Medium
2114	Maximum Number of Words Found in Sentences	C#	Easy
2115	Find All Possible Recipes from Given Supplies	C#	Medium
2116	Check if a Parentheses String Can Be Valid	C#	Medium
2117	Abbreviating the Product of a Range	C#	Hard
2118	Build the Equation	C#	Hard
2119	A Number After a Double Reversal	C#	Easy
2120	Execution of All Suffix Instructions Staying in a Grid	C#	Medium
2121	Intervals Between Identical Elements	C#	Medium
2122	Recover the Original Array	C#	Hard
2123	Minimum Operations to Remove Adjacent Ones in Matrix	C#	Hard
2124	Check if All A's Appears Before All B's	C#	Easy
2125	Number of Laser Beams in a Bank	C#	Medium
2126	Destroying Asteroids	C#	Medium
2127	Maximum Employees to Be Invited to a Meeting	C#	Hard
2128	Remove All Ones With Row and Column Flips	C#	Medium
2129	Capitalize the Title	C#	Easy
2130	Maximum Twin Sum of a Linked List	C#	Medium
2131	Longest Palindrome by Concatenating Two Letter Words	C#	Medium
2132	Stamping the Grid	C#	Hard
2133	Check if Every Row and Column Contains All Numbers	C#	Easy
2134	Minimum Swaps to Group All 1's Together II	C#	Medium
2135	Count Words Obtained After Adding a Letter	C#	Medium
2136	Earliest Possible Day of Full Bloom	C#	Hard
2137	Pour Water Between Buckets to Make Water Levels Equal	C#	Medium
2138	Divide a String Into Groups of Size k	C#	Easy
2139	Minimum Moves to Reach Target Score	C#	Medium
2140	Solving Questions With Brainpower	C#	Medium
2141	Maximum Running Time of N Computers	C#	Hard
2142	The Number of Passengers in Each Bus I	C#	Medium
2143	Choose Numbers From Two Arrays in Range	C#	Hard
2144	Minimum Cost of Buying Candies With Discount	C#	Easy
2145	Count the Hidden Sequences	C#	Medium
2146	K Highest Ranked Items Within a Price Range	C#	Medium
2147	Number of Ways to Divide a Long Corridor	C#	Hard
2148	Count Elements With Strictly Smaller and Greater Elements	C#	Easy
2149	Rearrange Array Elements by Sign	C#	Medium
2150	Find All Lonely Numbers in the Array	C#	Medium
2151	Maximum Good People Based on Statements	C#	Hard
2152	Minimum Number of Lines to Cover Points	C#	Medium
2153	The Number of Passengers in Each Bus II	C#	Hard
2154	Keep Multiplying Found Values by Two	C#	Easy
2155	All Divisions With the Highest Score of a Binary Array	C#	Medium
2156	Find Substring With Given Hash Value	C#	Hard
2157	Groups of Strings	C#	Hard
2158	Amount of New Area Painted Each Day	C#	Hard
2159	Order Two Columns Independently	C#	Medium
2160	Minimum Sum of Four Digit Number After Splitting Digits	C#	Easy
2161	Partition Array According to Given Pivot	C#	Medium
2162	Minimum Cost to Set Cooking Time	C#	Medium
2163	Minimum Difference in Sums After Removal of Elements	C#	Hard
2164	Sort Even and Odd Indices Independently	C#	Easy
2165	Smallest Value of the Rearranged Number	C#	Medium
2166	Design Bitset	C#	Medium
2167	Minimum Time to Remove All Cars Containing Illegal Goods	C#	Hard
2168	Unique Substrings With Equal Digit Frequency	C#	Medium
2169	Count Operations to Obtain Zero	C#	Easy
2170	Minimum Operations to Make the Array Alternating	C#	Medium
2171	Removing Minimum Number of Magic Beans	C#	Medium
2172	Maximum AND Sum of Array	C#	Hard
2173	Longest Winning Streak	C#	Hard
2174	Remove All Ones With Row and Column Flips II	C#	Medium
2175	The Change in Global Rankings	C#	Medium
2176	Count Equal and Divisible Pairs in an Array	C#	Easy
2177	Find Three Consecutive Integers That Sum to a Given Number	C#	Medium
2178	Maximum Split of Positive Even Integers	C#	Medium
2179	Count Good Triplets in an Array	C#	Hard
2180	Count Integers With Even Digit Sum	C#	Easy
2181	Merge Nodes in Between Zeros	C#	Medium
2182	Construct String With Repeat Limit	C#	Medium
2183	Count Array Pairs Divisible by K	C#	Hard
2184	Number of Ways to Build Sturdy Brick Wall	C#	Medium
2185	Counting Words With a Given Prefix	C#	Easy
2186	Minimum Number of Steps to Make Two Strings Anagram II	C#	Medium
2187	Minimum Time to Complete Trips	C#	Medium
2188	Minimum Time to Finish the Race	C#	Hard
2189	Number of Ways to Build House of Cards	C#	Medium
2190	Most Frequent Number Following Key In an Array	C#	Easy
2191	Sort the Jumbled Numbers	C#	Medium
2192	All Ancestors of a Node in a Directed Acyclic Graph	C#	Medium
2193	Minimum Number of Moves to Make Palindrome	C#	Hard
2194	Cells in a Range on an Excel Sheet	C#	Easy
2195	Append K Integers With Minimal Sum	C#	Medium
2196	Create Binary Tree From Descriptions	C#	Medium
2197	Replace Non-Coprime Numbers in Array	C#	Hard
2198	Number of Single Divisor Triplets	C#	Medium
2199	Finding the Topic of Each Post	C#	Hard
2200	Find All K-Distant Indices in an Array	C#	Easy
2201	Count Artifacts That Can Be Extracted	C#	Medium
2202	Maximize the Topmost Element After K Moves	C#	Medium
2203	Minimum Weighted Subgraph With the Required Paths	C#	Hard
2204	Distance to a Cycle in Undirected Graph	C#	Hard
2205	The Number of Users That Are Eligible for Discount	C#	Easy
2206	Divide Array Into Equal Pairs	C#	Easy
2207	Maximize Number of Subsequences in a String	C#	Medium
2208	Minimum Operations to Halve Array Sum	C#	Medium
2209	Minimum White Tiles After Covering With Carpets	C#	Hard
2210	Count Hills and Valleys in an Array	C#	Easy
2211	Count Collisions on a Road	C#	Medium
2212	Maximum Points in an Archery Competition	C#	Medium
2213	Longest Substring of One Repeating Character	C#	Hard
2214	Minimum Health to Beat Game	C#	Medium
2215	Find the Difference of Two Arrays	C#	Easy
2216	Minimum Deletions to Make Array Beautiful	C#	Medium
2217	Find Palindrome With Fixed Length	C#	Medium
2218	Maximum Value of K Coins From Piles	C#	Hard
2219	Maximum Sum Score of Array	C#	Medium
2220	Minimum Bit Flips to Convert Number	C#	Easy
2221	Find Triangular Sum of an Array	C#	Medium
2222	Number of Ways to Select Buildings	C#	Medium
2223	Sum of Scores of Built Strings	C#	Hard
2224	Minimum Number of Operations to Convert Time	C#	Easy
2225	Find Players With Zero or One Losses	C#	Medium
2226	Maximum Candies Allocated to K Children	C#	Medium
2227	Encrypt and Decrypt Strings	C#	Hard
2228	Users With Two Purchases Within Seven Days	C#	Medium
2229	Check if an Array Is Consecutive	C#	Easy
2230	The Users That Are Eligible for Discount	C#	Easy
2231	Largest Number After Digit Swaps by Parity	C#	Easy
2232	Minimize Result by Adding Parentheses to Expression	C#	Medium
2233	Maximum Product After K Increments	C#	Medium
2234	Maximum Total Beauty of the Gardens	C#	Hard
2235	Add Two Integers	C#	Easy
2236	Root Equals Sum of Children	C#	Easy
2237	Count Positions on Street With Required Brightness	C#	Medium
2238	Number of Times a Driver Was a Passenger	C#	Medium
2239	Find Closest Number to Zero	C#	Easy
2240	Number of Ways to Buy Pens and Pencils	C#	Medium
2241	Design an ATM Machine	C#	Medium
2242	Maximum Score of a Node Sequence	C#	Hard
2243	Calculate Digit Sum of a String	C#	Easy
2244	Minimum Rounds to Complete All Tasks	C#	Medium
2245	Maximum Trailing Zeros in a Cornered Path	C#	Medium
2246	Longest Path With Different Adjacent Characters	C#	Hard
2247	Maximum Cost of Trip With K Highways	C#	Hard
2248	Intersection of Multiple Arrays	C#	Easy
2249	Count Lattice Points Inside a Circle	C#	Medium
2250	Count Number of Rectangles Containing Each Point	C#	Medium
2251	Number of Flowers in Full Bloom	C#	Hard
2252	Dynamic Pivoting of a Table	C#	Hard
2253	Dynamic Unpivoting of a Table	C#	Hard
2254	Design Video Sharing Platform	C#	Hard
2255	Count Prefixes of a Given String	C#	Easy
2256	Minimum Average Difference	C#	Medium
2257	Count Unguarded Cells in the Grid	C#	Medium
2258	Escape the Spreading Fire	C#	Hard
2259	Remove Digit From Number to Maximize Result	C#	Easy
2260	Minimum Consecutive Cards to Pick Up	C#	Medium
2261	K Divisible Elements Subarrays	C#	Medium
2262	Total Appeal of A String	C#	Hard
2263	Make Array Non-decreasing or Non-increasing	C#	Hard
2264	Largest 3-Same-Digit Number in String	C#	Easy
2265	Count Nodes Equal to Average of Subtree	C#	Medium
2266	Count Number of Texts	C#	Medium
2267	Check if There Is a Valid Parentheses String Path	C#	Hard
2268	Minimum Number of Keypresses	C#	Medium
2269	Find the K-Beauty of a Number	C#	Easy
2270	Number of Ways to Split Array	C#	Medium
2271	Maximum White Tiles Covered by a Carpet	C#	Medium
2272	Substring With Largest Variance	C#	Hard
2273	Find Resultant Array After Removing Anagrams	C#	Easy
2274	Maximum Consecutive Floors Without Special Floors	C#	Medium
2275	Largest Combination With Bitwise AND Greater Than Zero	C#	Medium
2276	Count Integers in Intervals	C#	Hard
2277	Closest Node to Path in Tree	C#	Hard
2278	Percentage of Letter in String	C#	Easy
2279	Maximum Bags With Full Capacity of Rocks	C#	Medium
2280	Minimum Lines to Represent a Line Chart	C#	Medium
2281	Sum of Total Strength of Wizards	C#	Hard
2282	Number of People That Can Be Seen in a Grid	C#	Medium
2283	Check if Number Has Equal Digit Count and Digit Value	C#	Easy
2284	Sender With Largest Word Count	C#	Medium
2285	Maximum Total Importance of Roads	C#	Medium
2286	Booking Concert Tickets in Groups	C#	Hard
2287	Rearrange Characters to Make Target String	C#	Easy
2288	Apply Discount to Prices	C#	Medium
2289	Steps to Make Array Non-decreasing	C#	Medium
2290	Minimum Obstacle Removal to Reach Corner	C#	Hard
2291	Maximum Profit From Trading Stocks	C#	Medium
2292	Products With Three or More Orders in Two Consecutive Years	C#	Medium
2293	Min Max Game	C#	Easy
2294	Partition Array Such That Maximum Difference Is K	C#	Medium
2295	Replace Elements in an Array	C#	Medium
2296	Design a Text Editor	C#	Hard
2297	Jump Game VIII	C#	Medium
2298	Tasks Count in the Weekend	C#	Medium
2299	Strong Password Checker II	C#	Easy
2300	Successful Pairs of Spells and Potions	C#	Medium
2301	Match Substring After Replacement	C#	Hard
2302	Count Subarrays With Score Less Than K	C#	Hard
2303	Calculate Amount Paid in Taxes	C#	Easy
2304	Minimum Path Cost in a Grid	C#	Medium
2305	Fair Distribution of Cookies	C#	Medium
2306	Naming a Company	C#	Hard
2307	Check for Contradictions in Equations	C#	Hard
2308	Arrange Table by Gender	C#	Medium
2309	Greatest English Letter in Upper and Lower Case	C#	Easy
2310	Sum of Numbers With Units Digit K	C#	Medium
2311	Longest Binary Subsequence Less Than or Equal to K	C#	Medium
2312	Selling Pieces of Wood	C#	Hard
2313	Minimum Flips in Binary Tree to Get Result	C#	Hard
2314	The First Day of the Maximum Recorded Degree in Each City	C#	Medium
2315	Count Asterisks	C#	Easy
2316	Count Unreachable Pairs of Nodes in an Undirected Graph	C#	Medium
2317	Maximum XOR After Operations	C#	Medium
2318	Number of Distinct Roll Sequences	C#	Hard
2319	Check if Matrix Is X-Matrix	C#	Easy
2320	Count Number of Ways to Place Houses	C#	Medium
2321	Maximum Score Of Spliced Array	C#	Hard
2322	Minimum Score After Removals on a Tree	C#	Hard
2323	Find Minimum Time to Finish All Jobs II	C#	Medium
2324	Product Sales Analysis IV	C#	Medium
2325	Decode the Message	C#	Easy
2326	Spiral Matrix IV	C#	Medium
2327	Number of People Aware of a Secret	C#	Medium
2328	Number of Increasing Paths in a Grid	C#	Hard
2329	Product Sales Analysis V	C#	Easy
2330	Valid Palindrome IV	C#	Medium
2331	Evaluate Boolean Binary Tree	C#	Easy
2332	The Latest Time to Catch a Bus	C#	Medium
2333	Minimum Sum of Squared Difference	C#	Medium
2334	Subarray With Elements Greater Than Varying Threshold	C#	Hard
2335	Minimum Amount of Time to Fill Cups	C#	Easy
2336	Smallest Number in Infinite Set	C#	Medium
2337	Move Pieces to Obtain a String	C#	Medium
2338	Count the Number of Ideal Arrays	C#	Hard
2339	All the Matches of the League	C#	Easy
2340	Minimum Adjacent Swaps to Make a Valid Array	C#	Medium
2341	Maximum Number of Pairs in Array	C#	Easy
2342	Max Sum of a Pair With Equal Sum of Digits	C#	Medium
2343	Query Kth Smallest Trimmed Number	C#	Medium
2344	Minimum Deletions to Make Array Divisible	C#	Hard
2345	Finding the Number of Visible Mountains	C#	Medium
2346	Compute the Rank as a Percentage	C#	Medium
2347	Best Poker Hand	C#	Easy
2348	Number of Zero-Filled Subarrays	C#	Medium
2349	Design a Number Container System	C#	Medium
2350	Shortest Impossible Sequence of Rolls	C#	Hard
2351	First Letter to Appear Twice	C#	Easy
2352	Equal Row and Column Pairs	C#	Medium
2353	Design a Food Rating System	C#	Medium
2354	Number of Excellent Pairs	C#	Hard
2355	Maximum Number of Books You Can Take	C#	Hard
2356	Number of Unique Subjects Taught by Each Teacher	C#	Easy
2357	Make Array Zero by Subtracting Equal Amounts	C#	Easy
2358	Maximum Number of Groups Entering a Competition	C#	Medium
2359	Find Closest Node to Given Two Nodes	C#	Medium
2360	Longest Cycle in a Graph	C#	Hard
2361	Minimum Costs Using the Train Line	C#	Hard
2362	Generate the Invoice	C#	Hard
2363	Merge Similar Items	C#	Easy
2364	Count Number of Bad Pairs	C#	Medium
2365	Task Scheduler II	C#	Medium
2366	Minimum Replacements to Sort the Array	C#	Hard
2367	Number of Arithmetic Triplets	C#	Easy
2368	Reachable Nodes With Restrictions	C#	Medium
2369	Check if There is a Valid Partition For The Array	C#	Medium
2370	Longest Ideal Subsequence	C#	Medium
2371	Minimize Maximum Value in a Grid	C#	Hard
2372	Calculate the Influence of Each Salesperson	C#	Medium
2373	Largest Local Values in a Matrix	C#	Easy
2374	Node With Highest Edge Score	C#	Medium
2375	Construct Smallest Number From DI String	C#	Medium
2376	Count Special Integers	C#	Hard
2377	Sort the Olympic Table	C#	Easy
2378	Choose Edges to Maximize Score in a Tree	C#	Medium
2379	Minimum Recolors to Get K Consecutive Black Blocks	C#	Easy
2380	Time Needed to Rearrange a Binary String	C#	Medium
2381	Shifting Letters II	C#	Medium
2382	Maximum Segment Sum After Removals	C#	Hard
2383	Minimum Hours of Training to Win a Competition	C#	Easy
2384	Largest Palindromic Number	C#	Medium
2385	Amount of Time for Binary Tree to Be Infected	C#	Medium
2386	Find the K-Sum of an Array	C#	Hard
2387	Median of a Row Wise Sorted Matrix	C#	Medium
2388	Change Null Values in a Table to the Previous Value	C#	Medium
2389	Longest Subsequence With Limited Sum	C#	Easy
2390	Removing Stars From a String	C#	Medium
2391	Minimum Amount of Time to Collect Garbage	C#	Medium
2392	Build a Matrix With Conditions	C#	Hard
2393	[Count Strictly Increasing Subarrays](https://leetcode.com/problems/count-