Leecode-Problems

Collection of LeetCode questions to ace the coding interview! - Created using LeetHub

LeetCode Topics

Array


0039-combination-sum
0040-combination-sum-ii
0053-maximum-subarray
0078-subsets
0121-best-time-to-buy-and-sell-stock
0139-word-break
0399-evaluate-division
0416-partition-equal-subset-sum
1014-k-closest-points-to-origin
1548-check-if-all-1s-are-at-least-length-k-places-away
2358-number-of-ways-to-split-array
2588-maximum-number-of-points-from-grid-queries

Backtracking


0017-letter-combinations-of-a-phone-number
0039-combination-sum
0040-combination-sum-ii
0078-subsets

Bit Manipulation


0078-subsets
0231-power-of-two
0795-k-th-symbol-in-grammar

Math


0070-climbing-stairs
0231-power-of-two
0795-k-th-symbol-in-grammar
1014-k-closest-points-to-origin

Recursion


0231-power-of-two
0795-k-th-symbol-in-grammar

Hash Table


0017-letter-combinations-of-a-phone-number
0139-word-break
0146-lru-cache
2300-construct-string-with-repeat-limit

String


0017-letter-combinations-of-a-phone-number
0091-decode-ways
0139-word-break
0399-evaluate-division
0647-palindromic-substrings
1250-longest-common-subsequence
2300-construct-string-with-repeat-limit
3617-find-the-original-typed-string-i

Depth-First Search


0399-evaluate-division
0803-cheapest-flights-within-k-stops
0820-find-eventual-safe-states

Breadth-First Search


0399-evaluate-division
0803-cheapest-flights-within-k-stops
0820-find-eventual-safe-states
2583-divide-nodes-into-the-maximum-number-of-groups
2588-maximum-number-of-points-from-grid-queries

Graph


0399-evaluate-division
0803-cheapest-flights-within-k-stops
0820-find-eventual-safe-states
2583-divide-nodes-into-the-maximum-number-of-groups

Topological Sort


0820-find-eventual-safe-states

Divide and Conquer


0053-maximum-subarray
1014-k-closest-points-to-origin

Geometry


1014-k-closest-points-to-origin

Sorting


1014-k-closest-points-to-origin
2588-maximum-number-of-points-from-grid-queries

Heap (Priority Queue)


0803-cheapest-flights-within-k-stops
1014-k-closest-points-to-origin
2300-construct-string-with-repeat-limit
2588-maximum-number-of-points-from-grid-queries

Quickselect


1014-k-closest-points-to-origin

Greedy


2300-construct-string-with-repeat-limit

Counting


2300-construct-string-with-repeat-limit

Union Find


0399-evaluate-division
2583-divide-nodes-into-the-maximum-number-of-groups
2588-maximum-number-of-points-from-grid-queries

Shortest Path


0399-evaluate-division
0803-cheapest-flights-within-k-stops

Dynamic Programming


0053-maximum-subarray
0070-climbing-stairs
0091-decode-ways
0121-best-time-to-buy-and-sell-stock
0139-word-break
0416-partition-equal-subset-sum
0647-palindromic-substrings
0803-cheapest-flights-within-k-stops
1250-longest-common-subsequence

Memoization


0070-climbing-stairs
0139-word-break

Two Pointers


0647-palindromic-substrings
2588-maximum-number-of-points-from-grid-queries

Prefix Sum


2358-number-of-ways-to-split-array

Trie


0139-word-break

Matrix


2588-maximum-number-of-points-from-grid-queries

Linked List


0146-lru-cache

Design


0146-lru-cache

Doubly-Linked List


0146-lru-cache

Name		Name	Last commit message	Last commit date
Latest commit History 1,107 Commits
.github/workflows		.github/workflows
0001-two-sum		0001-two-sum
0003-longest-substring-without-repeating-characters		0003-longest-substring-without-repeating-characters
0004-median-of-two-sorted-arrays		0004-median-of-two-sorted-arrays
0005-longest-palindromic-substring		0005-longest-palindromic-substring
0006-zigzag-conversion		0006-zigzag-conversion
0007-reverse-integer		0007-reverse-integer
0009-palindrome-number		0009-palindrome-number
0014-longest-common-prefix		0014-longest-common-prefix
0015-3sum		0015-3sum
0016-3sum-closest		0016-3sum-closest
0017-letter-combinations-of-a-phone-number		0017-letter-combinations-of-a-phone-number
0020-valid-parentheses		0020-valid-parentheses
0024-swap-nodes-in-pairs		0024-swap-nodes-in-pairs
0026-remove-duplicates-from-sorted-array		0026-remove-duplicates-from-sorted-array
0027-remove-element		0027-remove-element
0028-find-the-index-of-the-first-occurrence-in-a-string		0028-find-the-index-of-the-first-occurrence-in-a-string
0031-next-permutation		0031-next-permutation
0032-longest-valid-parentheses		0032-longest-valid-parentheses
0035-search-insert-position		0035-search-insert-position
0036-valid-sudoku		0036-valid-sudoku
0039-combination-sum		0039-combination-sum
0040-combination-sum-ii		0040-combination-sum-ii
0042-trapping-rain-water		0042-trapping-rain-water
0045-jump-game-ii		0045-jump-game-ii
0049-group-anagrams		0049-group-anagrams
0053-maximum-subarray		0053-maximum-subarray
0054-spiral-matrix		0054-spiral-matrix
0056-merge-intervals		0056-merge-intervals
0063-unique-paths-ii		0063-unique-paths-ii
0064-minimum-path-sum		0064-minimum-path-sum
0066-plus-one		0066-plus-one
0067-add-binary		0067-add-binary
0070-climbing-stairs		0070-climbing-stairs
0071-simplify-path		0071-simplify-path
0074-search-a-2d-matrix		0074-search-a-2d-matrix
0077-combinations		0077-combinations
0078-subsets		0078-subsets
0086-partition-list		0086-partition-list
0088-merge-sorted-array		0088-merge-sorted-array
0091-decode-ways		0091-decode-ways
0093-restore-ip-addresses		0093-restore-ip-addresses
0094-binary-tree-inorder-traversal		0094-binary-tree-inorder-traversal
0100-same-tree		0100-same-tree
0103-binary-tree-zigzag-level-order-traversal		0103-binary-tree-zigzag-level-order-traversal
0104-maximum-depth-of-binary-tree		0104-maximum-depth-of-binary-tree
0110-balanced-binary-tree		0110-balanced-binary-tree
0121-best-time-to-buy-and-sell-stock		0121-best-time-to-buy-and-sell-stock
0125-valid-palindrome		0125-valid-palindrome
0131-palindrome-partitioning		0131-palindrome-partitioning
0134-gas-station		0134-gas-station
0139-word-break		0139-word-break
0141-linked-list-cycle		0141-linked-list-cycle
0144-binary-tree-preorder-traversal		0144-binary-tree-preorder-traversal
0146-lru-cache		0146-lru-cache
0149-max-points-on-a-line		0149-max-points-on-a-line
0160-intersection-of-two-linked-lists		0160-intersection-of-two-linked-lists
0175-combine-two-tables		0175-combine-two-tables
0182-duplicate-emails		0182-duplicate-emails
0183-customers-who-never-order		0183-customers-who-never-order
0189-rotate-array		0189-rotate-array
0191-number-of-1-bits		0191-number-of-1-bits
0196-delete-duplicate-emails		0196-delete-duplicate-emails
0206-reverse-linked-list		0206-reverse-linked-list
0215-kth-largest-element-in-an-array		0215-kth-largest-element-in-an-array
0225-implement-stack-using-queues		0225-implement-stack-using-queues
0226-invert-binary-tree		0226-invert-binary-tree
0231-power-of-two		0231-power-of-two
0242-valid-anagram		0242-valid-anagram
0258-add-digits		0258-add-digits
0263-ugly-number		0263-ugly-number
0283-move-zeroes		0283-move-zeroes
0287-find-the-duplicate-number		0287-find-the-duplicate-number
0300-longest-increasing-subsequence		0300-longest-increasing-subsequence
0319-bulb-switcher		0319-bulb-switcher
0344-reverse-string		0344-reverse-string
0347-top-k-frequent-elements		0347-top-k-frequent-elements
0352-data-stream-as-disjoint-intervals		0352-data-stream-as-disjoint-intervals
0387-first-unique-character-in-a-string		0387-first-unique-character-in-a-string
0389-find-the-difference		0389-find-the-difference
0390-elimination-game		0390-elimination-game
0399-evaluate-division		0399-evaluate-division
0416-partition-equal-subset-sum		0416-partition-equal-subset-sum
0427-construct-quad-tree		0427-construct-quad-tree
0443-string-compression		0443-string-compression
0448-find-all-numbers-disappeared-in-an-array		0448-find-all-numbers-disappeared-in-an-array
0451-sort-characters-by-frequency		0451-sort-characters-by-frequency
0452-minimum-number-of-arrows-to-burst-balloons		0452-minimum-number-of-arrows-to-burst-balloons
0460-lfu-cache		0460-lfu-cache
0472-concatenated-words		0472-concatenated-words
0491-non-decreasing-subsequences		0491-non-decreasing-subsequences
0496-next-greater-element-i		0496-next-greater-element-i
0501-find-mode-in-binary-search-tree		0501-find-mode-in-binary-search-tree
0502-ipo		0502-ipo
0515-find-largest-value-in-each-tree-row		0515-find-largest-value-in-each-tree-row
0525-contiguous-array		0525-contiguous-array
0540-single-element-in-a-sorted-array		0540-single-element-in-a-sorted-array
0542-01-matrix		0542-01-matrix
0543-diameter-of-binary-tree		0543-diameter-of-binary-tree
0547-number-of-provinces		0547-number-of-provinces

fizaayesha/Leetcode-Problems

Folders and files

Latest commit

History

Repository files navigation

Leecode-Problems

LeetCode Topics

Array

Backtracking

Bit Manipulation

Math

Recursion

Hash Table

String

Depth-First Search

Breadth-First Search

Graph

Topological Sort

Divide and Conquer

Geometry

Sorting

Heap (Priority Queue)

Quickselect

Greedy

Counting

Union Find

Shortest Path

Dynamic Programming

Memoization

Two Pointers

Prefix Sum

Trie

Matrix

Linked List

Design

Doubly-Linked List

About

Resources

Uh oh!

Stars

Watchers

Forks

Releases

Packages 0

Uh oh!

Languages

Packages