LeetCode Solutions🥛

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Arrays & Hashing

#	Problem	Solution	Difficulty
217	Contains Duplicate		Easy
242	Valid Anagram		Easy
1	Two Sum		Easy
49	Group Anagrams		Medium
347	Top K Frequent Elements		Medium
238	Product of Array Except Self		Medium
36	Valid Sudoku		Medium
128	Longest Consecutive Sequence		Medium

Two Pointers

#	Problem	Soultion	Difficulty
125	Valid Palindrome		Easy
126	Two Sum II - Input Array Is Sorted		Medium
15	3Sum		Medium
11	Container With Most Water		Medium
42	Trapping Rain Water		Hard

Sliding Window

#	Problem	Solution	Difficulty
121	Best Time to Buy and Sell Stock		Easy
3	Longest Substring Without Repeating Characters		Medium
424	Longest Repeating Character Replacement		Medium
567	Permutation in String		Medium
76	Minimum Window Substring		Hard
239	Sliding Window Maximum		Hard