[td] | # | Title | Acceptance | Difficulty | Frequency |
| 863 | All Nodes Distance K in Binary Tree
| 40.4% | Medium | . Waral dи,
. Χ
|
| 860 | Lemonade Change
| 49.6% | Easy |
. From 1point 3acres bbs
|
| 836 | Rectangle Overlap-baidu 1point3acres
| 42.7% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 819 | Most Common Word
| 48.8% | Easy | . Waral dи,
|
| 798 | Smallest Rotation with Highest Score
| 34.7% | Hard |
|
| 796 | Rotate String
| 49.4% | Easy |
..
|
| [color=rgb(0, 136, 204) !important] | 785 | Is Graph Bipartite?
| 39.2% | Medium |
. check 1point3acres for more.
|
| [color=rgb(0, 136, 204) !important] | 767 | Reorganize String
| 37.4% | Medium |
.google и
|
| [color=rgb(68, 157, 68) !important] | 763 | Partition Labels. ----
| 65.0% | Medium | . 1point 3acres
|
| [color=rgb(68, 157, 68) !important] | 739 | Daily Temperatures
| 54.3% | Medium |
. check 1point3acres for more.
.1point3acres
|
| 733 | Flood Fill. 1point3acres
| 47.9% | Easy |
|
| 703 | Kth Largest Element in a Stream
| 30.7% | Easy | . From 1point 3acres bbs
|
| 695 | Max Area of Island
| 52.6% | Easy |
|
| 694 | Number of Distinct Islands
| 45.7% | Medium | . ----
|
| [color=rgb(68, 157, 68) !important] | 692 | Top K Frequent Words
| 42.0% | Medium |
|
| 675 | Cut Off Trees for Golf Event.1point3acres
| 27.3% | Hard |
|
| 669 | Trim a Binary Search Tree-baidu 1point3acres
| 58.2% | Easy | .
|
| [color=rgb(0, 136, 204) !important] | 658 | Find K Closest Elements
| 34.6% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 657 | Judge Route Circle
| 68.9% | Easy |
. ----
|
| 653 | Two Sum IV - Input is a BST
| 50.4% | Easy | . From 1point 3acres bbs
|
| 652 | Find Duplicate Subtrees.--
| 38.7% | Medium |
|
| 647 | Palindromic Substrings
| 54.4% | Medium |
. Χ
|
| 642 | Design Search Autocomplete System
| 30.9% | Hard |
. .и
|
| [color=rgb(68, 157, 68) !important] | 617 | Merge Two Binary Trees
| 68.2% | Easy |
|
| 588 | Design In-Memory File System
| 36.4% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 572 | Subtree of Another Tree
| 40.4% | Easy |
|
| 564 | Find the Closest Palindrome
| 17.0% | Hard |
. .и
|
| 545 | Boundary of Binary Tree.--
| 32.8% | Medium | .1point3acres
.1point3acres
|
| [color=rgb(68, 157, 68) !important] | 543 | Diameter of Binary Tree
| 45.2% | Easy |
. ----
|
| 535 | Encode and Decode TinyURL. 1point 3 acres
| 74.1% | Medium |
|
| 508 | Most Frequent Subtree Sum
| 52.6% | Medium |
. From 1point 3acres bbs
|
| 460 | LFU Cache
| 25.7% | Hard |
|
| 454 | 4Sum II. 1point3acres.com
| 48.0% | Medium | .--
|
| [color=rgb(68, 157, 68) !important] | 394 | Decode String. 1point 3acres
| 42.2% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 387 | First Unique Character in a String. .и
| 47.5% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 380 | Insert Delete GetRandom O(1)
| 40.4% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 348 | Design Tic-Tac-Toe
| 46.7% | Medium |
. ----
|
| [color=rgb(68, 157, 68) !important] | 347 | Top K Frequent Elements.google и
| 50.6% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 346 | Moving Average from Data Stream
| 61.6% | Easy |
. From 1point 3acres bbs
|
| [color=rgb(68, 157, 68) !important] | 340 | Longest Substring with At Most K Distinct Characters
| 38.4% | Hard |
.google и
|
| [color=rgb(68, 157, 68) !important] | 329 | Longest Increasing Path in a Matrix
| 37.7% | Hard |
|
| [color=rgb(0, 136, 204) !important] | 322 | Coin Change. 1point 3 acres
| 27.1% | Medium |
|
| [color=rgb(0, 136, 204) !important] | 314 | Binary Tree Vertical Order Traversal
| 38.5% | Medium | .--
. 1point3acres.com
|
| [color=rgb(68, 157, 68) !important] | 312 | Burst Balloons
| 44.2% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 300 | Longest Increasing Subsequence
| 39.1% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 297 | Serialize and Deserialize Binary Tree
| 36.1% | Hard |
.1point3acres |
| [color=rgb(68, 157, 68) !important] | 295 | Find Median from Data Stream
| 31.0% | Hard | . .и
|
| [color=rgb(68, 157, 68) !important] | 289 | Game of Life ..
| 38.7% | Medium |
|
| 287 | Find the Duplicate Number
| 45.5% | Medium |
. check 1point3acres for more.
|
| 285 | Inorder Successor in BST
| 34.3% | Medium |
|
| 273 | Integer to English Words
| 23.1% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 270 | Closest Binary Search Tree Value
| 41.4% | Easy |
.google и
|
| [color=rgb(68, 157, 68) !important] | 269 | Alien Dictionary
| 27.1% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 268 | Missing Number
| 45.9% | Easy |
. 1point 3 acres
|
| [color=rgb(68, 157, 68) !important] | 253 | Meeting Rooms II. 1point3acres.com
| 40.0% | Medium |
|
| 252 | Meeting Rooms.
| 49.5% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 251 | Flatten 2D Vector
| 41.9% | Medium | . .и
. Waral dи,
|
| [color=rgb(68, 157, 68) !important] | 242 | Valid Anagram
| 48.5% | Easy |
.--
|
| [color=rgb(0, 136, 204) !important] | 240 | Search a 2D Matrix II
| 39.3% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 239 | Sliding Window Maximum
| 35.0% | Hard |
|
| 238 | Product of Array Except Self ..
| 51.3% | Medium |
. .и
|
| [color=rgb(68, 157, 68) !important] | 236 | Lowest Common Ancestor of a Binary Tree
| 31.1% | Medium | . 1point 3 acres
|
| [color=rgb(68, 157, 68) !important] | 235 | Lowest Common Ancestor of a Binary Search Tree
| 40.8% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 232 | Implement Queue using Stacks. .и
| 39.3% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 231 | Power of Two. 1point3acres
| 41.0% | Easy |
. 1point 3acres
|
| [color=rgb(68, 157, 68) !important] | 230 | Kth Smallest Element in a BST
| 46.8% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 224 | Basic Calculator-baidu 1point3acres
| 29.5% | Hard | . ----
. 1point 3acres
|
| 221 | Maximal Square
| 31.0% | Medium |
. 1point3acres
|
| [color=rgb(68, 157, 68) !important] | 215 | Kth Largest Element in an Array
| 42.2% | Medium | . .и
|
| [color=rgb(68, 157, 68) !important] | 212 | Word Search II
| 25.6% | Hard |
|
| 211 | Add and Search Word - Data structure design
| 26.5% | Medium |
-baidu 1point3acres
|
| 210 | Course Schedule II
| 31.3% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 208 | Implement Trie (Prefix Tree)
| 32.8% | Medium |
. 1point 3 acres
|
| 207 | Course Schedule
| 34.6% | Medium |
.
|
| [color=rgb(68, 157, 68) !important] | 206 | Reverse Linked List
.google и | 48.7% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 204 | Count Primes
| 26.9% | Easy |
. Χ
|
| 203 | Remove Linked List Elements. .и
| 34.1% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 200 | Number of Islands
| 37.6% | Medium | -baidu 1point3acres
. 1point3acres
|
| 199 | | 43.8% | Medium |
|
| 198 | House Robber
| 40.3% | Easy |
|
| 188 | Best Time to Buy and Sell Stock IV
| 25.2% | Hard | . ----
. 1point 3 acres
|
| [color=rgb(68, 157, 68) !important] | 186 | Reverse Words in a String II
| 32.6% | Medium |
|
| 179 | Largest Number.--
| 24.0% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 176 | Second Highest Salary. check 1point3acres for more.
| 24.0% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 173 | Binary Search Tree Iterator
| 44.4% | Medium |
. 1point3acres.com
|
| [color=rgb(68, 157, 68) !important] | 167 | Two Sum II - Input array is sorted
| 47.5% | Easy |
.--
. ----
|
| [color=rgb(0, 136, 204) !important] | 165 | Compare Version Numbers
| 21.3% | Medium | -baidu 1point3acres
.
|
| [color=rgb(68, 157, 68) !important] | 160 | Intersection of Two Linked Lists
| 30.8% | Easy |
. 1point3acres.com
|
| [color=rgb(68, 157, 68) !important] | 155 | Min Stack
| 32.7% | Easy | . 1point 3 acres
. From 1point 3acres bbs
|
| [color=rgb(68, 157, 68) !important] | 153 | Find Minimum in Rotated Sorted Array
| 41.4% | Medium |
|
| [color=rgb(0, 136, 204) !important] | 151 | Reverse Words in a String
| 15.7% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 150 | Evaluate Reverse Polish Notation
| 29.4% | Medium |
|
| [color=rgb(0, 136, 204) !important] | 149 | Max Points on a Line
| 15.2% | Hard |
. 1point3acres
|
| [color=rgb(68, 157, 68) !important] | 146 | LRU Cache
| 20.9% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 141 | Linked List Cycle
| 34.8% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 140 | Word Break II
| 25.1% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 139 | Word Break
| 32.3% | Medium | . Χ
. From 1point 3acres bbs
|
| 138 | Copy List with Random Pointer
| 25.7% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 136 | Single Number. check 1point3acres for more.
| 56.6% | Easy |
.
|
| 134 | Gas Station
| 30.9% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 133 | Clone Graph. check 1point3acres for more.
| 25.2% | Medium |
|
| 130 | Surrounded Regions
| 20.4% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 128 | Longest Consecutive Sequence
| 39.0% | Hard | . check 1point3acres for more.
|
| [color=rgb(0, 136, 204) !important] | 127 | Word Ladder
| 20.8% | Medium | .1point3acres
|
| [color=rgb(0, 136, 204) !important] | 126 | Word Ladder II
| 15.4% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 125 | Valid Palindrome-baidu 1point3acres
| 28.1% | Easy |
. Waral dи,
. 1point3acres.com
|
| 124 | Binary Tree Maximum Path Sum
| 27.7% | Hard |
. ----
|
| 123 | Best Time to Buy and Sell Stock III
| 31.1% | Hard |
|
| 122 | Best Time to Buy and Sell Stock II
| 48.8% | Easy |
. 1point3acres.com
|
| [color=rgb(68, 157, 68) !important] | 121 | Best Time to Buy and Sell Stock
| 44.0% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 120 | Triangle
| 36.0% | Medium | .1point3acres
|
| 117 | | 33.7% | Medium |
|
| 113 | Path Sum II
| 37.0% | Medium |
.google и
|
| 112 | Path Sum
| 35.6% | Easy | . 1point 3 acres
. Χ
|
| 111 | Minimum Depth of Binary Tree. 1point3acres
| 33.9% | Easy |
|
| 110 | Balanced Binary Tree. Waral dи,
| 39.0% | Easy | ..
|
| [color=rgb(68, 157, 68) !important] | 104 | Maximum Depth of Binary Tree
| 56.4% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 103 | Binary Tree Zigzag Level Order Traversal ..
| 38.0% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 102 | Binary Tree Level Order Traversal
| 44.1% | Medium | . 1point3acres
. 1point3acres.com
|
| [color=rgb(68, 157, 68) !important] | 101 | Symmetric Tree.--
| 41.2% | Easy |
. ----
. 1point 3acres
|
| [color=rgb(68, 157, 68) !important] | 100 | Same Tree. Χ
| 48.3% | Easy |
. Waral dи,
|
| 99 | Recover Binary Search Tree. .и
| 31.9% | Hard | .
|
| [color=rgb(0, 136, 204) !important] | 98 | Validate Binary Search Tree
| 24.3% | Medium |
|
| 93 | Restore IP Addresses
| 29.1% | Medium |
|
| 91 | Decode Ways
| 20.8% | Medium |
.
|
| [color=rgb(0, 136, 204) !important] | 88 | Merge Sorted Array. From 1point 3acres bbs
| 33.0% | Easy |
|
| 84 | Largest Rectangle in Histogram
| 28.4% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 79 | Word Search
| 28.7% | Medium | . Waral dи,
|
| [color=rgb(68, 157, 68) !important] | 78 | Subsets
| 46.9% | Medium |
..
|
| 76 | Minimum Window Substring
| 27.8% | Hard |
|
| 75 | Sort Colors
| 39.7% | Medium |
. Χ
|
| 74 | Search a 2D Matrix
| 34.5% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 73 | Set Matrix Zeroes
| 37.3% | Medium |
.--
|
| 72 | Edit Distance
| 33.7% | Hard |
|
| 71 | Simplify Path
| 26.9% | Medium |
|
| 70 | Climbing Stairs
| 41.9% | Easy |
|
| [color=rgb(0, 136, 204) !important] | 69 | Sqrt(x)
. 1point3acres.com | 29.4% | Easy |
|
| 63 | Unique Paths II. 1point3acres
| 32.5% | Medium |
. Χ
|
| [color=rgb(68, 157, 68) !important] | 62 | Unique Paths
| 44.0% | Medium |
..
|
| 60 | Permutation Sequence
| 30.3% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 56 | Merge Intervals
| 32.8% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 54 | Spiral Matrix
| 28.0% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 53 | Maximum Subarray
| 41.0% | Easy | .1point3acres
|
| 51 | N-Queens
| 34.7% | Hard |
.google и
|
| [color=rgb(68, 157, 68) !important] | 50 | Pow(x, n)
| 26.4% | Medium |
. 1point 3 acres
|
| [color=rgb(68, 157, 68) !important] | 49 | Group Anagrams
| 40.5% | Medium |
.--
|
| [color=rgb(68, 157, 68) !important] | 48 | Rotate Image
| 43.5% | Medium | .
. Waral dи,
|
| [color=rgb(68, 157, 68) !important] | 46 | Permutations
| 49.3% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 42 | Trapping Rain Water
| 38.7% | Hard |
. 1point 3 acres
|
| [color=rgb(68, 157, 68) !important] | 39 | Combination Sum
| 43.0% | Medium |
.google и
|
| [color=rgb(68, 157, 68) !important] | 36 | Valid Sudoku
| 38.9% | Medium |
|
| [color=rgb(0, 136, 204) !important] | 34 | Find First and Last Position of Element in Sorted Array
| 31.9% | Medium | .--
|
| [color=rgb(0, 136, 204) !important] | 33 | Search in Rotated Sorted Array
| 32.0% | Medium | .
|
| 32 | Longest Valid Parentheses
| 23.6% | Hard |
. ----
|
| [color=rgb(68, 157, 68) !important] | 31 | Next Permutation
| 29.2% | Medium |
|
| 29 | Divide Two Integers
| 15.7% | Medium |
|
| 27 | Remove Element
| 41.7% | Easy |
. From 1point 3acres bbs
|
| 26 | Remove Duplicates from Sorted Array
| 37.5% | Easy |
|
| 25 | Reverse Nodes in k-Group
| 32.8% | Hard |
. ----
|
| 24 | Swap Nodes in Pairs
| 40.4% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 23 | Merge k Sorted Lists
| 29.7% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 22 | Generate Parentheses
| 49.6% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 21 | Merge Two Sorted Lists
| 42.7% | Easy |
. Waral dи,
|
| [color=rgb(68, 157, 68) !important] | 20 | Valid Parentheses
| 34.4% | Easy |
|
| [color=rgb(68, 157, 68) !important] | 17 | Letter Combinations of a Phone Number
| 37.7% | Medium |
|
| 16 | 3Sum Closest
| 32.3% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 13 | Roman to Integer.1point3acres
| 49.2% | Easy | -baidu 1point3acres
|
| [color=rgb(68, 157, 68) !important] | 12 | Integer to Roman
| 47.2% | Medium |
|
| 11 | Container With Most Water
| 37.9% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 9 | Palindrome Number
| 37.8% | Easy |
.--
|
| [color=rgb(0, 136, 204) !important] | 8 | String to Integer (atoi)
| 14.1% | Medium | .google и
|
| [color=rgb(0, 136, 204) !important] | 5 | Longest Palindromic Substring.
| 25.6% | Medium | . .и
|
| [color=rgb(68, 157, 68) !important] | 4 | Median of Two Sorted Arrays
| 23.6% | Hard |
|
| [color=rgb(68, 157, 68) !important] | 3 | Longest Substring Without Repeating Characters
| 24.9% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 2 | Add Two Numbers
| 29.0% | Medium |
|
| [color=rgb(68, 157, 68) !important] | 1 | Two Sum
| 38.7% | Easy |
. ----
|