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

LeetCode Topics

Array

0001-two-sum
0011-container-with-most-water
0026-remove-duplicates-from-sorted-array
0027-remove-element
0042-trapping-rain-water
0055-jump-game
0122-best-time-to-buy-and-sell-stock-ii
0167-two-sum-ii-input-array-is-sorted
0209-minimum-size-subarray-sum
0268-missing-number
0274-h-index
0283-move-zeroes
0643-maximum-average-subarray-i
0977-squares-of-a-sorted-array
2091-removing-minimum-and-maximum-from-array
2948-make-lexicographically-smallest-array-by-swapping-elements

Dynamic Programming

0042-trapping-rain-water
0055-jump-game
0122-best-time-to-buy-and-sell-stock-ii
0392-is-subsequence

Greedy

0011-container-with-most-water
0055-jump-game
0122-best-time-to-buy-and-sell-stock-ii
2091-removing-minimum-and-maximum-from-array

Two Pointers

0011-container-with-most-water
0026-remove-duplicates-from-sorted-array
0027-remove-element
0042-trapping-rain-water
0125-valid-palindrome
0151-reverse-words-in-a-string
0167-two-sum-ii-input-array-is-sorted
0283-move-zeroes
0392-is-subsequence
0844-backspace-string-compare
0977-squares-of-a-sorted-array
1768-merge-strings-alternately

Binary Search

0167-two-sum-ii-input-array-is-sorted
0209-minimum-size-subarray-sum
0268-missing-number

String

0003-longest-substring-without-repeating-characters
0012-integer-to-roman
0125-valid-palindrome
0151-reverse-words-in-a-string
0392-is-subsequence
0394-decode-string
0844-backspace-string-compare
1768-merge-strings-alternately

Sorting

0268-missing-number
0274-h-index
0977-squares-of-a-sorted-array
2948-make-lexicographically-smallest-array-by-swapping-elements

Counting Sort

0274-h-index

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0012-integer-to-roman
0268-missing-number

Math

0009-palindrome-number
0012-integer-to-roman
0268-missing-number

Bit Manipulation

0268-missing-number

Stack

0042-trapping-rain-water
0094-binary-tree-inorder-traversal
0394-decode-string
0844-backspace-string-compare

Monotonic Stack

0042-trapping-rain-water

Simulation

0844-backspace-string-compare

Sliding Window

0003-longest-substring-without-repeating-characters
0209-minimum-size-subarray-sum
0643-maximum-average-subarray-i

Prefix Sum

0209-minimum-size-subarray-sum

Recursion

0206-reverse-linked-list
0394-decode-string

Tree

0094-binary-tree-inorder-traversal
0100-same-tree
0104-maximum-depth-of-binary-tree

Depth-First Search

0094-binary-tree-inorder-traversal
0100-same-tree
0104-maximum-depth-of-binary-tree

Breadth-First Search

0100-same-tree
0104-maximum-depth-of-binary-tree

Binary Tree

0094-binary-tree-inorder-traversal
0100-same-tree
0104-maximum-depth-of-binary-tree

Database

0175-combine-two-tables
0177-nth-highest-salary
0178-rank-scores
0180-consecutive-numbers
0181-employees-earning-more-than-their-managers
0182-duplicate-emails
0183-customers-who-never-order
0184-department-highest-salary
0185-department-top-three-salaries
0196-delete-duplicate-emails
0197-rising-temperature
0511-game-play-analysis-i
0577-employee-bonus
0584-find-customer-referee
0586-customer-placing-the-largest-number-of-orders
0595-big-countries
1148-article-views-i

Linked List

0206-reverse-linked-list
2058-find-the-minimum-and-maximum-number-of-nodes-between-critical-points

Union-Find

2948-make-lexicographically-smallest-array-by-swapping-elements