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535 Commits
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
 
 
0047-permutations-ii
0047-permutations-ii
 
 
0053-maximum-subarray
0053-maximum-subarray
 
 
0062-unique-paths
0062-unique-paths
 
 
0063-unique-paths-ii
0063-unique-paths-ii
 
 
0064-minimum-path-sum
0064-minimum-path-sum
 
 
0066-plus-one
0066-plus-one
 
 
0070-climbing-stairs
0070-climbing-stairs
 
 
0072-edit-distance
0072-edit-distance
 
 
0075-sort-colors
0075-sort-colors
 
 
0121-best-time-to-buy-and-sell-stock
0121-best-time-to-buy-and-sell-stock
 
 
0141-linked-list-cycle
0141-linked-list-cycle
 
 
0169-majority-element
0169-majority-element
 
 
0189-rotate-array
0189-rotate-array
 
 
0198-house-robber
0198-house-robber
 
 
0206-reverse-linked-list
0206-reverse-linked-list
 
 
0237-delete-node-in-a-linked-list
0237-delete-node-in-a-linked-list
 
 
0240-search-a-2d-matrix-ii
0240-search-a-2d-matrix-ii
 
 
0268-missing-number
0268-missing-number
 
 
0322-coin-change
0322-coin-change
 
 
0416-partition-equal-subset-sum
0416-partition-equal-subset-sum
 
 
0485-max-consecutive-ones
0485-max-consecutive-ones
 
 
0516-longest-palindromic-subsequence
0516-longest-palindromic-subsequence
 
 
0643-maximum-average-subarray-i
0643-maximum-average-subarray-i
 
 
0712-minimum-ascii-delete-sum-for-two-strings
0712-minimum-ascii-delete-sum-for-two-strings
 
 
0724-find-pivot-index
0724-find-pivot-index
 
 
0744-find-smallest-letter-greater-than-target
0744-find-smallest-letter-greater-than-target
 
 
0876-middle-of-the-linked-list
0876-middle-of-the-linked-list
 
 
0944-delete-columns-to-make-sorted
0944-delete-columns-to-make-sorted
 
 
0961-n-repeated-element-in-size-2n-array
0961-n-repeated-element-in-size-2n-array
 
 
1015-smallest-integer-divisible-by-k
1015-smallest-integer-divisible-by-k
 
 
1018-binary-prefix-divisible-by-5
1018-binary-prefix-divisible-by-5
 
 
1047-remove-all-adjacent-duplicates-in-string
1047-remove-all-adjacent-duplicates-in-string
 
 
1092-shortest-common-supersequence
1092-shortest-common-supersequence
 
 
1143-longest-common-subsequence
1143-longest-common-subsequence
 
 
1161-maximum-level-sum-of-a-binary-tree
1161-maximum-level-sum-of-a-binary-tree
 
 
1200-minimum-absolute-difference
1200-minimum-absolute-difference
 
 
1262-greatest-sum-divisible-by-three
1262-greatest-sum-divisible-by-three
 
 
1266-minimum-time-visiting-all-points
1266-minimum-time-visiting-all-points
 
 
1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
 
 
1351-count-negative-numbers-in-a-sorted-matrix
1351-count-negative-numbers-in-a-sorted-matrix
 
 
1382-balance-a-binary-search-tree
1382-balance-a-binary-search-tree
 
 
1390-four-divisors
1390-four-divisors
 
 
1458-max-dot-product-of-two-subsequences
1458-max-dot-product-of-two-subsequences
 
 
1480-running-sum-of-1d-array
1480-running-sum-of-1d-array
 
 
1523-count-odd-numbers-in-an-interval-range
1523-count-odd-numbers-in-an-interval-range
 
 
1653-minimum-deletions-to-make-string-balanced
1653-minimum-deletions-to-make-string-balanced
 
 
1877-minimize-maximum-pair-sum-in-array
1877-minimize-maximum-pair-sum-in-array
 
 
1903-largest-odd-number-in-string
1903-largest-odd-number-in-string
 
 
1925-count-square-sum-triples
1925-count-square-sum-triples
 
 
1975-maximum-matrix-sum
1975-maximum-matrix-sum
 
 
1984-minimum-difference-between-highest-and-lowest-of-k-scores
1984-minimum-difference-between-highest-and-lowest-of-k-scores
 
 
1991-find-the-middle-index-in-array
1991-find-the-middle-index-in-array
 
 
2054-two-best-non-overlapping-events
2054-two-best-non-overlapping-events
 
 
2110-number-of-smooth-descent-periods-of-a-stock
2110-number-of-smooth-descent-periods-of-a-stock
 
 
2149-rearrange-array-elements-by-sign
2149-rearrange-array-elements-by-sign
 
 
2211-count-collisions-on-a-road
2211-count-collisions-on-a-road
 
 
2483-minimum-penalty-for-a-shop
2483-minimum-penalty-for-a-shop
 
 
2600-k-items-with-the-maximum-sum
2600-k-items-with-the-maximum-sum
 
 
3010-divide-an-array-into-subarrays-with-minimum-cost-i
3010-divide-an-array-into-subarrays-with-minimum-cost-i
 
 
3013-divide-an-array-into-subarrays-with-minimum-cost-ii
3013-divide-an-array-into-subarrays-with-minimum-cost-ii
 
 
3379-transformed-array
3379-transformed-array
 
 
3432-count-partitions-with-even-sum-difference
3432-count-partitions-with-even-sum-difference
 
 
3453-separate-squares-i
3453-separate-squares-i
 
 
3531-count-covered-buildings
3531-count-covered-buildings
 
 
3578-count-partitions-with-max-min-difference-at-most-k
3578-count-partitions-with-max-min-difference-at-most-k
 
 
3634-minimum-removals-to-balance-array
3634-minimum-removals-to-balance-array
 
 
3637-trionic-array-i
3637-trionic-array-i
 
 
3640-trionic-array-ii
3640-trionic-array-ii
 
 
3713-longest-balanced-substring-i
3713-longest-balanced-substring-i
 
 
3719-longest-balanced-subarray-i
3719-longest-balanced-subarray-i
 
 
3721-longest-balanced-subarray-ii
3721-longest-balanced-subarray-ii
 
 
1039. Minimum Score Triangulation of Polygon
1039. Minimum Score Triangulation of Polygon
 
 
1072. Flip Columns For Maximum Number of Equal Rows
1072. Flip Columns For Maximum Number of Equal Rows
 
 
1079. Letter Tile Possibilities
1079. Letter Tile Possibilities
 
 
1092. Shortest Common Supersequence
1092. Shortest Common Supersequence
 
 
11. Container With Most Water
11. Container With Most Water
 
 
1106. Parsing A Boolean Expression
1106. Parsing A Boolean Expression
 
 
1128. Number of Equivalent Domino Pairs
1128. Number of Equivalent Domino Pairs
 
 
120. Triangle
120. Triangle
 
 
1233. Remove Sub-Folders from the Filesystem
1233. Remove Sub-Folders from the Filesystem
 
 
1261. Find Elements in a Contaminated Binary Tree
1261. Find Elements in a Contaminated Binary Tree
 
 
1267. Count Servers that Communicate
1267. Count Servers that Communicate
 
 
1277. Count Square Submatrices with All Ones
1277. Count Square Submatrices with All Ones
 
 
1346. Check If N and Its Double Exist
1346. Check If N and Its Double Exist
 
 
1352. Product of the Last K Numbers
1352. Product of the Last K Numbers
 
 
1358. Number of Substrings Containing All Three Characters
1358. Number of Substrings Containing All Three Characters
 
 
14. Longest Common Prefix
14. Longest Common Prefix
 
 
1400. Construct K Palindrome Strings
1400. Construct K Palindrome Strings
 
 
1405. Longest Happy String
1405. Longest Happy String
 
 
1408. String Matching in an Array
1408. String Matching in an Array
 
 
1408. String Matching in an Array(kmp)
1408. String Matching in an Array(kmp)
 
 
1415. The k-th Lexicographical String of All Happy Strings of Length n
1415. The k-th Lexicographical String of All Happy Strings of Length n
 
 
1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence
1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence
 
 
1462. Course Schedule IV
1462. Course Schedule IV
 
 
1475. Final Prices With a Special Discount in a Shop
1475. Final Prices With a Special Discount in a Shop
 
 
1518. Water Bottles
1518. Water Bottles
 
 
1524. Number of Sub-arrays With Odd Sum
1524. Number of Sub-arrays With Odd Sum
 
 
1526. Minimum Number of Increments on Subarrays to Form a Target Array
1526. Minimum Number of Increments on Subarrays to Form a Target Array
 
 

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A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Array
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0053-maximum-subarray
0063-unique-paths-ii
0064-minimum-path-sum
0066-plus-one
0075-sort-colors
0121-best-time-to-buy-and-sell-stock
0169-majority-element
0189-rotate-array
0198-house-robber
0240-search-a-2d-matrix-ii
0268-missing-number
0322-coin-change
0416-partition-equal-subset-sum
0485-max-consecutive-ones
0643-maximum-average-subarray-i
0724-find-pivot-index
0744-find-smallest-letter-greater-than-target
0944-delete-columns-to-make-sorted
0961-n-repeated-element-in-size-2n-array
1018-binary-prefix-divisible-by-5
1200-minimum-absolute-difference
1262-greatest-sum-divisible-by-three
1266-minimum-time-visiting-all-points
1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
1351-count-negative-numbers-in-a-sorted-matrix
1390-four-divisors
1458-max-dot-product-of-two-subsequences
1480-running-sum-of-1d-array
1877-minimize-maximum-pair-sum-in-array
1975-maximum-matrix-sum
1984-minimum-difference-between-highest-and-lowest-of-k-scores
1991-find-the-middle-index-in-array
2054-two-best-non-overlapping-events
2110-number-of-smooth-descent-periods-of-a-stock
2149-rearrange-array-elements-by-sign
3010-divide-an-array-into-subarrays-with-minimum-cost-i
3013-divide-an-array-into-subarrays-with-minimum-cost-ii
3379-transformed-array
3432-count-partitions-with-even-sum-difference
3453-separate-squares-i
3531-count-covered-buildings
3578-count-partitions-with-max-min-difference-at-most-k
3634-minimum-removals-to-balance-array
3640-trionic-array-ii
3719-longest-balanced-subarray-i
3721-longest-balanced-subarray-ii

Dynamic Programming
0053-maximum-subarray
0062-unique-paths
0063-unique-paths-ii
0064-minimum-path-sum
0070-climbing-stairs
0072-edit-distance
0121-best-time-to-buy-and-sell-stock
0198-house-robber
0322-coin-change
0416-partition-equal-subset-sum
0516-longest-palindromic-subsequence
0712-minimum-ascii-delete-sum-for-two-strings
1092-shortest-common-supersequence
1143-longest-common-subsequence
1262-greatest-sum-divisible-by-three
1458-max-dot-product-of-two-subsequences
1653-minimum-deletions-to-make-string-balanced
2054-two-best-non-overlapping-events
2110-number-of-smooth-descent-periods-of-a-stock
3578-count-partitions-with-max-min-difference-at-most-k
3640-trionic-array-ii

Greedy
1262-greatest-sum-divisible-by-three
1382-balance-a-binary-search-tree
1877-minimize-maximum-pair-sum-in-array
1903-largest-odd-number-in-string
1975-maximum-matrix-sum
2600-k-items-with-the-maximum-sum

Sorting
0075-sort-colors
0169-majority-element
0268-missing-number
1200-minimum-absolute-difference
1262-greatest-sum-divisible-by-three
1877-minimize-maximum-pair-sum-in-array
1984-minimum-difference-between-highest-and-lowest-of-k-scores
2054-two-best-non-overlapping-events
3010-divide-an-array-into-subarrays-with-minimum-cost-i
3531-count-covered-buildings
3634-minimum-removals-to-balance-array

Bit Manipulation
0268-missing-number
1018-binary-prefix-divisible-by-5

Hash Table
0141-linked-list-cycle
0169-majority-element
0268-missing-number
0961-n-repeated-element-in-size-2n-array
1015-smallest-integer-divisible-by-k
3013-divide-an-array-into-subarrays-with-minimum-cost-ii
3531-count-covered-buildings
3713-longest-balanced-substring-i
3719-longest-balanced-subarray-i
3721-longest-balanced-subarray-ii

Math
0062-unique-paths
0066-plus-one
0070-climbing-stairs
0189-rotate-array
0268-missing-number
1015-smallest-integer-divisible-by-k
1266-minimum-time-visiting-all-points
1390-four-divisors
1523-count-odd-numbers-in-an-interval-range
1903-largest-odd-number-in-string
1925-count-square-sum-triples
2110-number-of-smooth-descent-periods-of-a-stock
2600-k-items-with-the-maximum-sum
3432-count-partitions-with-even-sum-difference

String
0072-edit-distance
0516-longest-palindromic-subsequence
0712-minimum-ascii-delete-sum-for-two-strings
0944-delete-columns-to-make-sorted
1047-remove-all-adjacent-duplicates-in-string
1092-shortest-common-supersequence
1143-longest-common-subsequence
1653-minimum-deletions-to-make-string-balanced
1903-largest-odd-number-in-string
2211-count-collisions-on-a-road
2483-minimum-penalty-for-a-shop
3713-longest-balanced-substring-i

Stack
1047-remove-all-adjacent-duplicates-in-string
1653-minimum-deletions-to-make-string-balanced
2211-count-collisions-on-a-road

Simulation
2149-rearrange-array-elements-by-sign
2211-count-collisions-on-a-road
3379-transformed-array

Prefix Sum
0724-find-pivot-index
1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
1480-running-sum-of-1d-array
1991-find-the-middle-index-in-array
2483-minimum-penalty-for-a-shop
3432-count-partitions-with-even-sum-difference
3578-count-partitions-with-max-min-difference-at-most-k
3719-longest-balanced-subarray-i
3721-longest-balanced-subarray-ii

Queue
3578-count-partitions-with-max-min-difference-at-most-k

Sliding Window
0643-maximum-average-subarray-i
1984-minimum-difference-between-highest-and-lowest-of-k-scores
3013-divide-an-array-into-subarrays-with-minimum-cost-ii
3578-count-partitions-with-max-min-difference-at-most-k
3634-minimum-removals-to-balance-array

Monotonic Queue
3578-count-partitions-with-max-min-difference-at-most-k

Enumeration
1925-count-square-sum-triples
3010-divide-an-array-into-subarrays-with-minimum-cost-i
3713-longest-balanced-substring-i

Linked List
0141-linked-list-cycle
0206-reverse-linked-list
0237-delete-node-in-a-linked-list
0876-middle-of-the-linked-list

Two Pointers
0075-sort-colors
0141-linked-list-cycle
0189-rotate-array
0876-middle-of-the-linked-list
1877-minimize-maximum-pair-sum-in-array
2149-rearrange-array-elements-by-sign

Recursion
0206-reverse-linked-list

Binary Search
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0240-search-a-2d-matrix-ii
0268-missing-number
0744-find-smallest-letter-greater-than-target
1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
1351-count-negative-numbers-in-a-sorted-matrix
2054-two-best-non-overlapping-events
3453-separate-squares-i

Heap (Priority Queue)
2054-two-best-non-overlapping-events
3013-divide-an-array-into-subarrays-with-minimum-cost-ii

Matrix
0063-unique-paths-ii
0064-minimum-path-sum
0240-search-a-2d-matrix-ii
1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
1351-count-negative-numbers-in-a-sorted-matrix
1975-maximum-matrix-sum

Memoization
0070-climbing-stairs

Combinatorics
0062-unique-paths

Breadth-First Search
0322-coin-change
1161-maximum-level-sum-of-a-binary-tree

Tree
1161-maximum-level-sum-of-a-binary-tree
1382-balance-a-binary-search-tree

Depth-First Search
1161-maximum-level-sum-of-a-binary-tree
1382-balance-a-binary-search-tree

Binary Tree
1161-maximum-level-sum-of-a-binary-tree
1382-balance-a-binary-search-tree

Geometry
1266-minimum-time-visiting-all-points

Divide and Conquer
0053-maximum-subarray
0169-majority-element
0240-search-a-2d-matrix-ii
1382-balance-a-binary-search-tree
3719-longest-balanced-subarray-i
3721-longest-balanced-subarray-ii

Counting
0169-majority-element
3713-longest-balanced-substring-i

Binary Search Tree
1382-balance-a-binary-search-tree

Segment Tree
3719-longest-balanced-subarray-i
3721-longest-balanced-subarray-ii

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