Leetcode-Problems

LeetCode Topics

Tree


0102-binary-tree-level-order-traversal

Breadth-First Search


0102-binary-tree-level-order-traversal
0200-number-of-islands

Binary Tree


0102-binary-tree-level-order-traversal

Array


0200-number-of-islands
0303-range-sum-query-immutable
0496-next-greater-element-i
0525-contiguous-array
0560-subarray-sum-equals-k
0739-daily-temperatures

Depth-First Search


0200-number-of-islands

Union Find


0200-number-of-islands

Matrix


0200-number-of-islands

Design


0303-range-sum-query-immutable

Prefix Sum


0303-range-sum-query-immutable
0525-contiguous-array
0560-subarray-sum-equals-k

Hash Table


0496-next-greater-element-i
0525-contiguous-array
0560-subarray-sum-equals-k

Stack


0496-next-greater-element-i
0739-daily-temperatures

Monotonic Stack


0496-next-greater-element-i
0739-daily-temperatures

Name		Name	Last commit message	Last commit date
Latest commit History 848 Commits
0001-two-sum		0001-two-sum
0002-add-two-numbers		0002-add-two-numbers
0003-longest-substring-without-repeating-characters		0003-longest-substring-without-repeating-characters
0011-container-with-most-water		0011-container-with-most-water
0015-3sum		0015-3sum
0019-remove-nth-node-from-end-of-list		0019-remove-nth-node-from-end-of-list
0021-merge-two-sorted-lists		0021-merge-two-sorted-lists
0023-merge-k-sorted-lists		0023-merge-k-sorted-lists
0026-remove-duplicates-from-sorted-array		0026-remove-duplicates-from-sorted-array
0031-next-permutation		0031-next-permutation
0033-search-in-rotated-sorted-array		0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array		0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position		0035-search-insert-position
0040-combination-sum-ii		0040-combination-sum-ii
0048-rotate-image		0048-rotate-image
0053-maximum-subarray		0053-maximum-subarray
0058-length-of-last-word		0058-length-of-last-word
0061-rotate-list		0061-rotate-list
0069-sqrtx		0069-sqrtx
0073-set-matrix-zeroes		0073-set-matrix-zeroes
0074-search-a-2d-matrix		0074-search-a-2d-matrix
0075-sort-colors		0075-sort-colors
0080-remove-duplicates-from-sorted-array-ii		0080-remove-duplicates-from-sorted-array-ii
0083-remove-duplicates-from-sorted-list		0083-remove-duplicates-from-sorted-list
0088-merge-sorted-array		0088-merge-sorted-array
0094-binary-tree-inorder-traversal		0094-binary-tree-inorder-traversal
0100-same-tree		0100-same-tree
0102-binary-tree-level-order-traversal		0102-binary-tree-level-order-traversal
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
0118-pascals-triangle		0118-pascals-triangle
0121-best-time-to-buy-and-sell-stock		0121-best-time-to-buy-and-sell-stock
0125-valid-palindrome		0125-valid-palindrome
0128-longest-consecutive-sequence		0128-longest-consecutive-sequence
0138-copy-list-with-random-pointer		0138-copy-list-with-random-pointer
0142-linked-list-cycle-ii		0142-linked-list-cycle-ii
0144-binary-tree-preorder-traversal		0144-binary-tree-preorder-traversal
0145-binary-tree-postorder-traversal		0145-binary-tree-postorder-traversal
0151-reverse-words-in-a-string		0151-reverse-words-in-a-string
0153-find-minimum-in-rotated-sorted-array		0153-find-minimum-in-rotated-sorted-array
0155-min-stack		0155-min-stack
0160-intersection-of-two-linked-lists		0160-intersection-of-two-linked-lists
0162-find-peak-element		0162-find-peak-element
0167-two-sum-ii-input-array-is-sorted		0167-two-sum-ii-input-array-is-sorted
0169-majority-element		0169-majority-element
0199-binary-tree-right-side-view		0199-binary-tree-right-side-view
0200-number-of-islands		0200-number-of-islands
0206-reverse-linked-list		0206-reverse-linked-list
0215-kth-largest-element-in-an-array		0215-kth-largest-element-in-an-array
0217-contains-duplicate		0217-contains-duplicate
0229-majority-element-ii		0229-majority-element-ii
0234-palindrome-linked-list		0234-palindrome-linked-list
0236-lowest-common-ancestor-of-a-binary-tree		0236-lowest-common-ancestor-of-a-binary-tree
0237-delete-node-in-a-linked-list		0237-delete-node-in-a-linked-list
0242-valid-anagram		0242-valid-anagram
0257-binary-tree-paths		0257-binary-tree-paths
0278-first-bad-version		0278-first-bad-version
0287-find-the-duplicate-number		0287-find-the-duplicate-number
0303-range-sum-query-immutable		0303-range-sum-query-immutable
0367-valid-perfect-square		0367-valid-perfect-square
0387-first-unique-character-in-a-string		0387-first-unique-character-in-a-string
0485-max-consecutive-ones		0485-max-consecutive-ones
0496-next-greater-element-i		0496-next-greater-element-i
0523-continuous-subarray-sum		0523-continuous-subarray-sum
0525-contiguous-array		0525-contiguous-array
0540-single-element-in-a-sorted-array		0540-single-element-in-a-sorted-array
0543-diameter-of-binary-tree		0543-diameter-of-binary-tree
0560-subarray-sum-equals-k		0560-subarray-sum-equals-k
0662-maximum-width-of-binary-tree		0662-maximum-width-of-binary-tree
0739-daily-temperatures		0739-daily-temperatures
0745-find-smallest-letter-greater-than-target		0745-find-smallest-letter-greater-than-target
0852-peak-index-in-a-mountain-array		0852-peak-index-in-a-mountain-array
0876-middle-of-the-linked-list		0876-middle-of-the-linked-list
0907-koko-eating-bananas		0907-koko-eating-bananas
0908-middle-of-the-linked-list		0908-middle-of-the-linked-list
0948-sort-an-array		0948-sort-an-array
0994-rotting-oranges		0994-rotting-oranges
1-two-sum		1-two-sum
1019-squares-of-a-sorted-array		1019-squares-of-a-sorted-array
102-binary-tree-level-order-traversal		102-binary-tree-level-order-traversal
1021-remove-outermost-parentheses		1021-remove-outermost-parentheses
1029-vertical-order-traversal-of-a-binary-tree		1029-vertical-order-traversal-of-a-binary-tree
1046-last-stone-weight		1046-last-stone-weight
1056-capacity-to-ship-packages-within-d-days		1056-capacity-to-ship-packages-within-d-days
118-pascals-triangle		118-pascals-triangle
1290-convert-binary-number-in-a-linked-list-to-integer		1290-convert-binary-number-in-a-linked-list-to-integer
131-palindrome-partitioning		131-palindrome-partitioning
1337-the-k-weakest-rows-in-a-matrix		1337-the-k-weakest-rows-in-a-matrix
1338-reduce-array-size-to-the-half		1338-reduce-array-size-to-the-half
1346-check-if-n-and-its-double-exist		1346-check-if-n-and-its-double-exist
1351-count-negative-numbers-in-a-sorted-matrix		1351-count-negative-numbers-in-a-sorted-matrix
1370-count-number-of-nice-subarrays		1370-count-number-of-nice-subarrays
1385-find-the-distance-value-between-two-arrays		1385-find-the-distance-value-between-two-arrays
1408-find-the-smallest-divisor-given-a-threshold		1408-find-the-smallest-divisor-given-a-threshold
141-linked-list-cycle		141-linked-list-cycle
142-linked-list-cycle-ii		142-linked-list-cycle-ii
144-binary-tree-preorder-traversal		144-binary-tree-preorder-traversal
1464-maximum-product-of-two-elements-in-an-array		1464-maximum-product-of-two-elements-in-an-array
153-find-minimum-in-rotated-sorted-array		153-find-minimum-in-rotated-sorted-array

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