Isomorphic Strings

LC 205 · 31 modes

Intersection of Two Arrays II

LC 350 · 12 modes

Design HashMap

LC 706 · 21 modes

Find Pivot Index

LC 724 · 35 modes

Height Checker

LC 1051 · 16 modes

Two Sum

LC 1 · 263 modes

Flatten 2D Vector

LC 251 · 15 modes

Design Snake Game

LC 353 · 7 modes

Insert Delete GetRandom O(1)

LC 380 · 21 modes

K-diff Pairs in an Array

LC 532 · 12 modes

Number of Divisible Triplet Sums

20 modes

Report Spam Message

20 modes

Group Anagrams

LC 49 · 255 modes

Product of Array Except Self

LC 238 · 248 modes

Valid Sudoku

LC 36 · 249 modes

First Missing Positive

LC 41 · 30 modes

LFU Cache

LC 460 · 8 modes

Reverse Words in a String III

LC 557 · 11 modes

Reverse Words in a String

LC 151 · 14 modes

Minimum Removals to Balance Array

19 modes

3Sum

LC 15 · 257 modes

Find The Duplicate Number

LC 287 · 245 modes

Trapping Rain Water

LC 42 · 256 modes

Equalize Strings by Adding or Removing Characters at Ends

20 modes

Longest Substring Without Repeating Characters

LC 3 · 250 modes

Minimum Window Substring

LC 76 · 249 modes

Sliding Window Maximum

LC 239 · 249 modes

Valid Parentheses

LC 20 · 260 modes

Implement Queue using Stacks

LC 232 · 11 modes

Simplify Path

LC 71 · 29 modes

Decode String

LC 394 · 27 modes

Lexicographically Minimum String After Removing Stars

20 modes

Beautiful Towers I

20 modes

Beautiful Towers II

17 modes

Min Stack

LC 155 · 245 modes

Daily Temperatures

LC 739 · 245 modes

Check If a Number Is Majority Element in a Sorted Array

LC 1150 · 16 modes

Search a 2D Matrix II

LC 240 · 16 modes

Find the Smallest Divisor Given a Threshold

LC 1283 · 8 modes

Closest Equal Element Queries

20 modes

Smallest Substring With Identical Characters I

17 modes

Smallest Substring With Identical Characters II

17 modes

Find Minimum In Rotated Sorted Array

LC 153 · 250 modes

Search In Rotated Sorted Array

LC 33 · 249 modes

Remove Duplicates from Sorted List

LC 83 · 27 modes

Remove Duplicates from Sorted List II

LC 82 · 15 modes

Add Two Numbers

LC 2 · 248 modes

LRU Cache

LC 146 · 243 modes

Invert Binary Tree

LC 226 · 256 modes

Symmetric Tree

LC 101 · 19 modes

Lowest Common Ancestor of a Binary Tree

LC 236 · 13 modes

Binary Tree Vertical Order Traversal

LC 314 · 11 modes

Find the Last Marked Nodes in Tree

11 modes

Count Good Nodes In Binary Tree

LC 1448 · 252 modes

Validate Binary Search Tree

LC 98 · 251 modes

Serialize And Deserialize Binary Tree

LC 297 · 246 modes

Last Stone Weight

LC 1046 · 247 modes

Top K Frequent Words

LC 692 · 15 modes

Kth Largest Element In An Array

LC 215 · 242 modes

The Skyline Problem

LC 218 · 16 modes

Maximum Frequency Stack

LC 895 · 24 modes

Find Median From Data Stream

LC 295 · 241 modes

Merge K Sorted Lists

LC 23 · 247 modes

Permutations

LC 46 · 248 modes

Generate Parentheses

LC 22 · 247 modes

Letter Combinations of a Phone Number

LC 17 · 248 modes

Design Search Autocomplete System

LC 642 · 14 modes

Word Search II

LC 212 · 240 modes

Number of Islands

LC 200 · 254 modes

Pacific Atlantic Water Flow

LC 417 · 249 modes

Course Schedule

LC 207 · 243 modes

Word Ladder

LC 127 · 248 modes

Minimize Maximum Component Cost

17 modes

Maximum Subarray

LC 53 · 260 modes

Count the Number of Inversions

20 modes

Remove Adjacent Almost-Equal Characters

20 modes

Word Break

LC 139 · 247 modes

Longest Increasing Subsequence

LC 300 · 256 modes

Largest Number

LC 179 · 35 modes

Divide Array Into Arrays With Max Difference

20 modes

Minimum Array Sum

17 modes

Maximum Palindromes After Operations

20 modes

Minimum Equal Sum of Two Arrays After Replacing Zeros

20 modes

Minimum Time to Visit All Houses

17 modes

Candy

LC 135 · 17 modes

Merge Intervals

LC 56 · 254 modes

Fizz Buzz

LC 412 · 15 modes

Rotate Image

LC 48 · 245 modes

Integer to Roman

LC 12 · 28 modes

Design Tic-Tac-Toe

LC 348 · 12 modes

Shuffle an Array

LC 384 · 12 modes

Find the Minimum Area to Cover All Ones I

20 modes

Matrix Similarity After Cyclic Shifts

20 modes

Find the Minimum Area to Cover All Ones II

17 modes

Maximum Height of a Triangle

20 modes

Set Matrix Zeroes

LC 73 · 242 modes

Reaching Points

LC 780 · 16 modes

Missing Number

LC 268 · 244 modes

Find Subarray With Bitwise OR Closest to K

18 modes

Maximum Number That Makes Result of Bitwise AND Zero

12 modes

Number of Self-Divisible Permutations

20 modes