Merge Sorted Array

LC 88 · 39 modes

Intersection of Two Arrays

LC 349 · 20 modes

Intersection of Two Arrays II

LC 350 · 19 modes

Add Strings

LC 415 · 23 modes

Squares of a Sorted Array

LC 977 · 41 modes

Two Sum

LC 1 · 270 modes

Next Permutation

LC 31 · 22 modes

Find First and Last Position of Element in Sorted Array

LC 34 · 31 modes

Simplify Path

LC 71 · 36 modes

Find Peak Element

LC 162 · 32 modes

Largest Number

LC 179 · 42 modes

Minimum Size Subarray Sum

LC 209 · 35 modes

Count Complete Tree Nodes

LC 222 · 21 modes

Search a 2D Matrix II

LC 240 · 23 modes

Remove Duplicate Letters

LC 316 · 19 modes

Generalized Abbreviation

LC 320 · 23 modes

Android Unlock Patterns

LC 351 · 21 modes

Decode String

LC 394 · 34 modes

Longest Substring with At Least K Repeating Characters

LC 395 · 23 modes

Remove K Digits

LC 402 · 34 modes

Queue Reconstruction by Height

LC 406 · 22 modes

Serialize and Deserialize BST

LC 449 · 18 modes

Continuous Subarray Sum

LC 523 · 34 modes

Next Closest Time

LC 681 · 19 modes

Partition to K Equal Sum Subsets

LC 698 · 27 modes

Asteroid Collision

LC 735 · 35 modes

Swap Adjacent in LR String

LC 777 · 22 modes

Score of Parentheses

LC 856 · 19 modes

All Nodes Distance K in Binary Tree

LC 863 · 20 modes

Subarray Sums Divisible by K

LC 974 · 21 modes

Campus Bikes

LC 1057 · 23 modes

Smallest String With Swaps

LC 1202 · 21 modes

Greatest Sum Divisible by Three

LC 1262 · 22 modes

Find the Smallest Divisor Given a Threshold

LC 1283 · 15 modes

Top K Frequent Elements

LC 347 · 264 modes

Product of Array Except Self

LC 238 · 255 modes

First Missing Positive

LC 41 · 37 modes

Wildcard Matching

LC 44 · 22 modes

Expression Add Operators

LC 282 · 23 modes

Frog Jump

LC 403 · 19 modes

Trapping Rain Water II

LC 407 · 22 modes

Optimal Account Balancing

LC 465 · 23 modes

Reverse Pairs

LC 493 · 23 modes

Number of Atoms

LC 726 · 23 modes

Basic Calculator III

LC 772 · 17 modes

Maximum Profit in Job Scheduling

LC 1235 · 22 modes

Two Sum II Input Array Is Sorted

LC 167 · 256 modes

3Sum

LC 15 · 264 modes

Container With Most Water

LC 11 · 257 modes

Trapping Rain Water

LC 42 · 263 modes

Best Time to Buy And Sell Stock

LC 121 · 262 modes

Longest Substring Without Repeating Characters

LC 3 · 257 modes

Permutation In String

LC 567 · 254 modes

Minimum Window Substring

LC 76 · 256 modes

Sliding Window Maximum

LC 239 · 256 modes

Dinner Plate Stacks

LC 1172 · 19 modes

Largest Rectangle In Histogram

LC 84 · 254 modes

Search In Rotated Sorted Array

LC 33 · 256 modes

Median of Two Sorted Arrays

LC 4 · 257 modes

Reverse Linked List

LC 206 · 260 modes

Merge Two Sorted Lists

LC 21 · 251 modes

Reorder List

LC 143 · 244 modes

Remove Nth Node From End of List

LC 19 · 256 modes

Add Two Numbers

LC 2 · 255 modes

LRU Cache

LC 146 · 250 modes

Merge K Sorted Lists

LC 23 · 254 modes

Reverse Nodes In K Group

LC 25 · 254 modes

Remove Duplicates from Sorted List

LC 83 · 34 modes

Binary Tree Inorder Traversal

LC 94 · 38 modes

Intersection of Two Linked Lists

LC 160 · 28 modes

Maximum Depth of Binary Tree

LC 104 · 258 modes

Diameter of Binary Tree

LC 543 · 258 modes

Balanced Binary Tree

LC 110 · 258 modes

Reverse Linked List II

LC 92 · 32 modes

Binary Tree Zigzag Level Order Traversal

LC 103 · 26 modes

Path Sum II

LC 113 · 20 modes

Flatten Binary Tree to Linked List

LC 114 · 19 modes

Sort List

LC 148 · 27 modes

Binary Search Tree Iterator

LC 173 · 26 modes

Lowest Common Ancestor of a Binary Tree

LC 236 · 20 modes

Binary Tree Vertical Order Traversal

LC 314 · 18 modes

Add Two Numbers II

LC 445 · 23 modes

Check Completeness of a Binary Tree

LC 958 · 21 modes

Maximum Product of Splitted Binary Tree

LC 1339 · 20 modes

Binary Tree Right Side View

LC 199 · 259 modes

Validate Binary Search Tree

LC 98 · 258 modes

Construct Binary Tree From Preorder And Inorder Traversal

LC 105 · 255 modes

Shortest Distance from All Buildings

LC 317 · 20 modes

Binary Tree Maximum Path Sum

LC 124 · 257 modes

Kth Largest Element In An Array

LC 215 · 249 modes

Find Median From Data Stream

LC 295 · 248 modes

Subsets

LC 78 · 256 modes

Implement Rand10() Using Rand7()

LC 470 · 16 modes

Permutations

LC 46 · 255 modes

Generate Parentheses

LC 22 · 254 modes

Word Search

LC 79 · 252 modes

N Queens

LC 51 · 255 modes

Word Search II

LC 212 · 247 modes

Number of Islands

LC 200 · 261 modes

Lexicographical Numbers

LC 386 · 22 modes

Max Area of Island

LC 695 · 256 modes

Walls And Gates

LC 286 · 243 modes

Course Schedule

LC 207 · 250 modes

K-th Smallest in Lexicographical Order

LC 440 · 22 modes

House Robber

LC 198 · 257 modes

Coin Change

LC 322 · 262 modes

Maximum Product Subarray

LC 152 · 253 modes

Word Break

LC 139 · 254 modes

Longest Common Subsequence

LC 1143 · 254 modes

Edit Distance

LC 72 · 244 modes

Longest Increasing Path In a Matrix

LC 329 · 250 modes

Regular Expression Matching

LC 10 · 254 modes

Maximum Subarray

LC 53 · 260 modes

Maximum Swap

LC 670 · 22 modes

Jump Game

LC 55 · 253 modes

Merge Intervals

LC 56 · 261 modes

Plus One

LC 66 · 251 modes

Spiral Matrix

LC 54 · 250 modes