| Defanging an IP Address |
87.5% |
Easy |
| Jewels and Stones |
86.4% |
Easy |
| Shuffle String |
86.1% |
Easy |
| Range Sum of BST |
81.3% |
Easy |
| Minimum Time Visiting All Points |
79.6% |
Easy |
| Intersection of Three Sorted Arrays |
78.9% |
Easy |
| Remove Outermost Parentheses |
78.0% |
Easy |
| Find N Unique Integers Sum up to Zero |
76.3% |
Easy |
| Flipping an Image |
76.2% |
Easy |
| Sort Array By Parity |
74.1% |
Easy |
| Nested List Weight Sum |
74.0% |
Easy |
| Make Two Arrays Equal by Reversing Sub-arrays |
73.9% |
Easy |
| Hamming Distance |
72.8% |
Easy |
| Squares of a Sorted Array |
72.1% |
Easy |
| Peak Index in a Mountain Array |
71.6% |
Easy |
| Moving Average from Data Stream |
70.9% |
Easy |
| Remove All Adjacent Duplicates In String |
68.6% |
Easy |
| Reverse String |
68.5% |
Easy |
| Queries Quality and Percentage |
68.3% |
Easy |
| Fibonacci Number |
67.2% |
Easy |
| Number of Comments per Post |
67.0% |
Easy |
| Shortest Distance to a Character |
66.9% |
Easy |
| Groups of Special-Equivalent Strings |
66.5% |
Easy |
| Maximum Depth of Binary Tree |
66.0% |
Easy |
| Island Perimeter |
65.7% |
Easy |
| Single Number |
65.5% |
Easy |
| Toeplitz Matrix |
65.1% |
Easy |
| Invert Binary Tree |
65.0% |
Easy |
| Project Employees I |
64.8% |
Easy |
| Leaf-Similar Trees |
64.5% |
Easy |
| Reported Posts |
64.1% |
Easy |
| Next Greater Element I |
63.8% |
Easy |
| Delete Node in a Linked List |
63.8% |
Easy |
| Goat Latin |
63.4% |
Easy |
| Uncommon Words from Two Sentences |
63.3% |
Easy |
| Average of Levels in Binary Tree |
63.1% |
Easy |
| Trim a Binary Search Tree |
63.0% |
Easy |
| Intersection of Two Arrays |
62.5% |
Easy |
| Reverse Linked List |
62.5% |
Easy |
| Palindrome Permutation |
61.9% |
Easy |
| Design HashMap |
61.3% |
Easy |
| Element Appearing More Than 25% In Sorted Array |
60.2% |
Easy |
| Convert Sorted Array to Binary Search Tree |
57.9% |
Easy |
| Monotonic Array |
57.9% |
Easy |
| Ads Performance |
57.8% |
Easy |
| Move Zeroes |
57.8% |
Easy |
| Rotated Digits |
57.1% |
Easy |
| Best Time to Buy and Sell Stock II |
57.0% |
Easy |
| Valid Anagram |
56.9% |
Easy |
| Employees Earning More Than Their Managers |
56.9% |
Easy |
| Contains Duplicate |
56.0% |
Easy |
| N-th Tribonacci Number |
55.9% |
Easy |
| Excel Sheet Column Number |
55.9% |
Easy |
| Roman to Integer |
55.7% |
Easy |
| Two Sum IV - Input is a BST |
55.5% |
Easy |
| Flood Fill |
55.3% |
Easy |
| Meeting Rooms |
54.6% |
Easy |
| User Activity for the Past 30 Days I |
54.1% |
Easy |
| Two Sum II - Input array is sorted |
54.1% |
Easy |
| Verifying an Alien Dictionary |
54.1% |
Easy |
| Project Employees II |
53.7% |
Easy |
| Merge Two Sorted Lists |
53.5% |
Easy |
| First Unique Character in a String |
53.4% |
Easy |
| Same Tree |
53.4% |
Easy |
| Find Winner on a Tic Tac Toe Game |
52.8% |
Easy |
| Pascal's Triangle |
52.5% |
Easy |
| Cousins in Binary Tree |
52.0% |
Easy |
| Missing Number |
51.7% |
Easy |
| Binary Tree Paths |
51.5% |
Easy |
| Intersection of Two Arrays II |
51.4% |
Easy |
| Sum of Left Leaves |
50.9% |
Easy |
| Best Time to Buy and Sell Stock |
50.5% |
Easy |
| Happy Number |
50.4% |
Easy |
| Find the Town Judge |
50.1% |
Easy |
| Lowest Common Ancestor of a Binary Search Tree |
49.9% |
Easy |
| Number of 1 Bits |
49.8% |
Easy |
| Kth Largest Element in a Stream |
49.7% |
Easy |
| Is Subsequence |
49.2% |
Easy |
| Number of Days Between Two Dates |
48.8% |
Easy |
| Closest Binary Search Tree Value |
48.5% |
Easy |
| Diameter of Binary Tree |
48.4% |
Easy |
| Palindrome Number |
48.4% |
Easy |
| Climbing Stairs |
47.8% |
Easy |
| Add Strings |
47.5% |
Easy |
| Maximum Product of Three Numbers |
47.1% |
Easy |
| Symmetric Tree |
46.8% |
Easy |
| Maximum Subarray |
46.5% |
Easy |
| Backspace String Compare |
46.4% |
Easy |
| Longest Continuous Increasing Subsequence |
45.9% |
Easy |
| Two Sum |
45.6% |
Easy |
| Remove Duplicates from Sorted List |
45.4% |
Easy |
| Add Binary |
45.2% |
Easy |
| Remove Duplicates from Sorted Array |
45.1% |
Easy |
| Strobogrammatic Number |
45.0% |
Easy |
| Range Sum Query - Immutable |
44.7% |
Easy |
| Count and Say |
44.6% |
Easy |
| Min Stack |
44.5% |
Easy |
| Reverse Vowels of a String |
44.2% |
Easy |
| Add to Array-Form of Integer |
44.2% |
Easy |
| Subtree of Another Tree |
44.1% |
Easy |
| Find Pivot Index |
44.0% |
Easy |
| Convert a Number to Hexadecimal |
43.9% |
Easy |
| Balanced Binary Tree |
43.5% |
Easy |
| Plus One |
43.0% |
Easy |
| Max Stack |
42.6% |
Easy |
| Moving Stones Until Consecutive |
41.7% |
Easy |
| String Compression |
41.3% |
Easy |
| Path Sum |
41.2% |
Easy |
| Linked List Cycle |
41.1% |
Easy |
| Friend Requests I: Overall Acceptance Rate |
41.0% |
Easy |
| Intersection of Two Linked Lists |
40.6% |
Easy |
| Isomorphic Strings |
39.8% |
Easy |
| Merge Sorted Array |
39.4% |
Easy |
| Palindrome Linked List |
39.3% |
Easy |
| Valid Parentheses |
39.0% |
Easy |
| Remove Linked List Elements |
38.6% |
Easy |
| Factorial Trailing Zeroes |
37.8% |
Easy |
| Minimum Depth of Binary Tree |
37.4% |
Easy |
| Word Pattern |
37.0% |
Easy |
| Valid Palindrome |
36.7% |
Easy |
| Valid Palindrome II |
36.6% |
Easy |
| First Bad Version |
35.7% |
Easy |
| Longest Common Prefix |
35.4% |
Easy |
| Rotate Array |
34.7% |
Easy |
| User Activity for the Past 30 Days II |
34.5% |
Easy |
| Implement strStr() |
34.5% |
Easy |
| Read N Characters Given Read4 |
34.2% |
Easy |
| Sqrt(x) |
33.9% |
Easy |
| Repeated String Match |
32.3% |
Easy |
| Second Highest Salary |
31.6% |
Easy |
| Can Place Flowers |
31.6% |
Easy |
| Count Primes |
31.5% |
Easy |
| Excel Sheet Column Title |
31.1% |
Easy |
| Valid Word Abbreviation |
30.6% |
Easy |
| Third Maximum Number |
30.5% |
Easy |
| Reverse Integer |
25.8% |
Easy |
| Apples & Oranges |
87.1% |
Medium |
| Find a Corresponding Node of a Binary Tree in a Clone of That Tree |
83.8% |
Medium |
| Customers Who Bought Products A and B but Not C |
80.7% |
Medium |
| Encode and Decode TinyURL |
79.9% |
Medium |
| Maximum Binary Tree |
79.9% |
Medium |
| Construct Binary Search Tree from Preorder Traversal |
78.4% |
Medium |
| Insert into a Binary Search Tree |
77.7% |
Medium |
| Partition Labels |
76.1% |
Medium |
| All Elements in Two Binary Search Trees |
76.1% |
Medium |
| Project Employees III |
75.6% |
Medium |
| Minimum Add to Make Parentheses Valid |
73.7% |
Medium |
| Battleships in a Board |
70.0% |
Medium |
| Diameter of N-Ary Tree |
70.0% |
Medium |
| Counting Bits |
69.5% |
Medium |
| Spiral Matrix III |
69.4% |
Medium |
| Candy Crush |
69.2% |
Medium |
| Distribute Coins in Binary Tree |
68.9% |
Medium |
| Find All Duplicates in an Array |
67.8% |
Medium |
| Page Recommendations |
67.6% |
Medium |
| Pancake Sorting |
67.5% |
Medium |
| Interval List Intersections |
67.3% |
Medium |
| Queue Reconstruction by Height |
66.9% |
Medium |
| Lowest Common Ancestor of Deepest Leaves |
66.8% |
Medium |
| Number Of Corner Rectangles |
66.4% |
Medium |
| Construct Binary Tree from Preorder and Postorder Traversal |
66.2% |
Medium |
| Maximum Difference Between Node and Ancestor |
66.0% |
Medium |
| Apply Discount Every n Orders |
66.0% |
Medium |
| Custom Sort String |
65.7% |
Medium |
| Partition Array for Maximum Sum |
65.2% |
Medium |
| Path with Maximum Gold |
65.1% |
Medium |
| Letter Case Permutation |
64.6% |
Medium |
| Single Number III |
64.3% |
Medium |
| Web Crawler |
64.3% |
Medium |
| Wiggle Sort |
63.8% |
Medium |
| K Closest Points to Origin |
63.8% |
Medium |
| Permutations |
63.5% |
Medium |
| Binary Tree Inorder Traversal |
63.3% |
Medium |
| Daily Temperatures |
63.3% |
Medium |
| Sort Characters By Frequency |
63.0% |
Medium |
| Maximum Binary Tree II |
63.0% |
Medium |
| Nested List Weight Sum II |
62.8% |
Medium |
| Generate Parentheses |
62.7% |
Medium |
| Max Area of Island |
62.7% |
Medium |
| Minimum Remove to Make Valid Parentheses |
62.5% |
Medium |
| Subsets |
62.0% |
Medium |
| Sparse Matrix Multiplication |
61.9% |
Medium |
| Top K Frequent Elements |
61.2% |
Medium |
| Find Largest Value in Each Tree Row |
61.1% |
Medium |
| Smallest Subtree with all the Deepest Nodes |
60.8% |
Medium |
| Palindromic Substrings |
60.6% |
Medium |
| Minimum Cost For Tickets |
60.5% |
Medium |
| Number of Closed Islands |
60.5% |
Medium |
| Kth Smallest Element in a BST |
60.2% |
Medium |
| Tree Diameter |
60.1% |
Medium |
| Product of Array Except Self |
60.1% |
Medium |
| Find Duplicate File in System |
59.5% |
Medium |
| Remove Sub-Folders from the Filesystem |
59.5% |
Medium |
| Minesweeper |
59.1% |
Medium |
| Max Consecutive Ones III |
59.1% |
Medium |
| Convert Binary Search Tree to Sorted Doubly Linked List |
59.1% |
Medium |
| Friend Circles |
58.6% |
Medium |
| Longest Common Subsequence |
58.4% |
Medium |
| Single Element in a Sorted Array |
57.9% |
Medium |
| Arithmetic Slices |
57.9% |
Medium |
| Maximum Sum of Two Non-Overlapping Subarrays |
57.9% |
Medium |
| Campus Bikes |
57.7% |
Medium |
| Next Greater Node In Linked List |
57.4% |
Medium |
| Longest Repeating Substring |
57.2% |
Medium |
| Group Anagrams |
56.9% |
Medium |
| Shortest Way to Form String |
56.9% |
Medium |
| Remove All Adjacent Duplicates in String II |
56.9% |
Medium |
| Car Pooling |
56.7% |
Medium |
| Rotate Image |
56.7% |
Medium |
| Binary Search Tree Iterator |
56.6% |
Medium |
| Next Greater Element II |
56.5% |
Medium |
| Combination Sum |
56.1% |
Medium |
| Random Pick Index |
56.0% |
Medium |
| Number of Connected Components in an Undirected Graph |
56.0% |
Medium |
| Number of Distinct Islands |
56.0% |
Medium |
| Split BST |
55.8% |
Medium |
| Odd Even Linked List |
55.7% |
Medium |
| Find the Duplicate Number |
55.5% |
Medium |
| All Nodes Distance K in Binary Tree |
55.4% |
Medium |
| Minimum Time to Collect All Apples in a Tree |
55.4% |
Medium |
| Kth Largest Element in an Array |
55.4% |
Medium |
| Check If Word Is Valid After Substitutions |
55.3% |
Medium |
| Different Ways to Add Parentheses |
55.2% |
Medium |
| Flatten a Multilevel Doubly Linked List |
55.1% |
Medium |
| Integer to Roman |
55.1% |
Medium |
| Group Shifted Strings |
55.1% |
Medium |
| Print Binary Tree |
55.0% |
Medium |
| Best Time to Buy and Sell Stock with Transaction Fee |
54.7% |
Medium |
| Combinations |
54.7% |
Medium |
| Binary Tree Level Order Traversal |
54.6% |
Medium |
| Walls and Gates |
54.5% |
Medium |
| Implement Magic Dictionary |
54.5% |
Medium |
| Minimum Path Sum |
54.5% |
Medium |
| Missing Element in Sorted Array |
54.5% |
Medium |
| Game of Life |
54.5% |
Medium |
| Add Two Numbers II |
54.5% |
Medium |
| Kth Smallest Element in a Sorted Matrix |
54.3% |
Medium |
| Design Tic-Tac-Toe |
54.3% |
Medium |
| Unique Paths |
54.1% |
Medium |
| Binary Tree Right Side View |
54.1% |
Medium |
| Spiral Matrix II |
53.9% |
Medium |
| Longest Arithmetic Sequence |
53.4% |
Medium |
| Friend Requests II: Who Has the Most Friends |
53.4% |
Medium |
| Longest Palindromic Subsequence |
53.2% |
Medium |
| Time Based Key-Value Store |
53.1% |
Medium |
| Unique Binary Search Trees |
52.9% |
Medium |
| Moving Stones Until Consecutive II |
52.9% |
Medium |
| Flatten Nested List Iterator |
52.9% |
Medium |
| Shuffle an Array |
52.8% |
Medium |
| Design Circular Deque |
52.7% |
Medium |
| Single Number II |
52.4% |
Medium |
| Linked List Random Node |
52.1% |
Medium |
| Koko Eating Bananas |
52.1% |
Medium |
| Check Completeness of a Binary Tree |
52.1% |
Medium |
| Count Univalue Subtrees |
52.0% |
Medium |
| Serialize and Deserialize BST |
52.0% |
Medium |
| Maximum Length of Pair Chain |
51.9% |
Medium |
| Exclusive Time of Functions |
51.9% |
Medium |
| Open the Lock |
51.8% |
Medium |
| Minimum Area Rectangle |
51.8% |
Medium |
| Top K Frequent Words |
51.8% |
Medium |
| Evaluate Division |
51.6% |
Medium |
| The Maze |
51.4% |
Medium |
| Minimum Area Rectangle II |
50.9% |
Medium |
| Container With Most Water |
50.8% |
Medium |
| Sum of Two Integers |
50.7% |
Medium |
| House Robber III |
50.6% |
Medium |
| Swap Nodes in Pairs |
50.4% |
Medium |
| Total Hamming Distance |
50.4% |
Medium |
| Find Duplicate Subtrees |
50.2% |
Medium |
| Coin Change 2 |
50.2% |
Medium |
| Task Scheduler |
50.1% |
Medium |
| Decode String |
50.0% |
Medium |
| Brick Wall |
50.0% |
Medium |
| Minimum Number of Arrows to Burst Balloons |
49.6% |
Medium |
| Longest Substring with At Most Two Distinct Characters |
49.4% |
Medium |
| Implement Trie (Prefix Tree) |
49.4% |
Medium |
| Flatten Binary Tree to Linked List |
49.3% |
Medium |
| Sum Root to Leaf Numbers |
49.1% |
Medium |
| Knight Probability in Chessboard |
48.9% |
Medium |
| Accounts Merge |
48.8% |
Medium |
| Construct Binary Tree from Preorder and Inorder Traversal |
48.8% |
Medium |
| Sort Transformed Array |
48.8% |
Medium |
| Reorganize String |
48.7% |
Medium |
| Valid Sudoku |
48.7% |
Medium |
| Previous Permutation With One Swap |
48.5% |
Medium |
| Validate Binary Tree Nodes |
48.5% |
Medium |
| Valid Triangle Number |
48.4% |
Medium |
| Construct Binary Tree from String |
48.3% |
Medium |
| Binary Tree Zigzag Level Order Traversal |
48.3% |
Medium |
| Combination Sum II |
48.2% |
Medium |
| Shortest Bridge |
48.2% |
Medium |
| Diagonal Traverse |
48.2% |
Medium |
| Word Subsets |
47.8% |
Medium |
| Convert Sorted List to Binary Search Tree |
47.7% |
Medium |
| The Maze II |
47.7% |
Medium |
| Strobogrammatic Number II |
47.6% |
Medium |
| Is Graph Bipartite? |
47.5% |
Medium |
| Insert Delete GetRandom O(1) |
47.5% |
Medium |
| Number of Matching Subsequences |
47.4% |
Medium |
| Best Time to Buy and Sell Stock with Cooldown |
47.4% |
Medium |
| Perfect Squares |
47.4% |
Medium |
| Sort Colors |
47.3% |
Medium |
| Path Sum III |
47.2% |
Medium |
| Vowel Spellchecker |
47.2% |
Medium |
| Construct Binary Tree from Inorder and Postorder Traversal |
47.2% |
Medium |
| Subsets II |
47.1% |
Medium |
| Binary Tree Longest Consecutive Sequence |
47.1% |
Medium |
| Binary Tree Longest Consecutive Sequence II |
47.0% |
Medium |
| Leftmost Column with at Least a One |
46.8% |
Medium |
| Number of Islands |
46.8% |
Medium |
| Count Complete Tree Nodes |
46.8% |
Medium |
| Maximum Size Subarray Sum Equals k |
46.8% |
Medium |
| Letter Combinations of a Phone Number |
46.8% |
Medium |
| Path Sum II |
46.7% |
Medium |
| Split Array with Equal Sum |
46.4% |
Medium |
| Permutations II |
46.4% |
Medium |
| Target Sum |
46.3% |
Medium |
| Increasing Subsequences |
46.1% |
Medium |
| 3Sum Closest |
46.0% |
Medium |
| Largest Plus Sign |
46.0% |
Medium |
| Web Crawler Multithreaded |
45.9% |
Medium |
| Rank Scores |
45.8% |
Medium |
| Lowest Common Ancestor of a Binary Tree |
45.7% |
Medium |
| Flatten 2D Vector |
45.7% |
Medium |
| Meeting Rooms II |
45.7% |
Medium |
| Peeking Iterator |
45.7% |
Medium |
| Maximum Width Ramp |
45.4% |
Medium |
| Bulb Switcher |
45.4% |
Medium |
| Combination Sum IV |
45.3% |
Medium |
| Game Play Analysis IV |
45.3% |
Medium |
| Binary Tree Vertical Order Traversal |
45.3% |
Medium |
| Populating Next Right Pointers in Each Node |
45.2% |
Medium |
| Knight Dialer |
45.2% |
Medium |
| Find Minimum in Rotated Sorted Array |
45.1% |
Medium |
| Next Closest Time |
45.0% |
Medium |
| Partition to K Equal Sum Subsets |
45.0% |
Medium |
| Shifting Letters |
44.6% |
Medium |
| Permutation in String |
44.4% |
Medium |
| Possible Bipartition |
44.2% |
Medium |
| Remove Duplicates from Sorted Array II |
44.0% |
Medium |
| Random Pick with Weight |
43.9% |
Medium |
| Subarray Sum Equals K |
43.9% |
Medium |
| Design Circular Queue |
43.8% |
Medium |
| Partition Equal Subset Sum |
43.7% |
Medium |
| Closest Leaf in a Binary Tree |
43.6% |
Medium |
| Maximum Swap |
43.6% |
Medium |
| Find All Anagrams in a String |
43.3% |
Medium |
| Find Peak Element |
43.3% |
Medium |
| Search a 2D Matrix II |
43.2% |
Medium |
| Exam Room |
43.1% |
Medium |
| Set Matrix Zeroes |
43.1% |
Medium |
| Delete Node in a BST |
43.1% |
Medium |
| Valid Square |
43.1% |
Medium |
| Course Schedule |
43.1% |
Medium |
| Add Bold Tag in String |
43.1% |
Medium |
| Non-overlapping Intervals |
42.9% |
Medium |
| Contiguous Array |
42.8% |
Medium |
| Friends Of Appropriate Ages |
42.7% |
Medium |
| Longest Increasing Subsequence |
42.6% |
Medium |
| Diagonal Traverse II |
42.4% |
Medium |
| Sort List |
42.3% |
Medium |
| Graph Valid Tree |
42.2% |
Medium |
| Find the Celebrity |
41.8% |
Medium |
| Longest Absolute File Path |
41.8% |
Medium |
| Longest Substring with At Least K Repeating Characters |
41.4% |
Medium |
| Pacific Atlantic Water Flow |
41.1% |
Medium |
| Maximum Width of Binary Tree |
41.0% |
Medium |
| Find K Closest Elements |
40.9% |
Medium |
| Course Schedule II |
40.7% |
Medium |
| Unique Binary Search Trees II |
40.6% |
Medium |
| Inorder Successor in BST |
40.4% |
Medium |
| Word Break |
40.1% |
Medium |
| Increasing Triplet Subsequence |
40.0% |
Medium |
| Wiggle Subsequence |
39.6% |
Medium |
| Equal Tree Partition |
39.5% |
Medium |
| Summary Ranges |
39.5% |
Medium |
| Merge Intervals |
39.3% |
Medium |
| Cheapest Flights Within K Stops |
39.3% |
Medium |
| Get Highest Answer Rate Question |
39.3% |
Medium |
| Populating Next Right Pointers in Each Node II |
39.1% |
Medium |
| Minimum Swaps To Make Sequences Increasing |
38.9% |
Medium |
| Reverse Linked List II |
38.8% |
Medium |
| Range Sum Query 2D - Immutable |
38.6% |
Medium |
| Generate Random Point in a Circle |
38.5% |
Medium |
| Minimum Size Subarray Sum |
38.2% |
Medium |
| Shortest Path in Binary Matrix |
38.2% |
Medium |
| Add and Search Word - Data structure design |
38.1% |
Medium |
| Rectangle Area |
37.8% |
Medium |
| Maximal Square |
37.7% |
Medium |
| UTF-8 Validation |
37.5% |
Medium |
| Reorder List |
37.1% |
Medium |
| Snapshot Array |
37.0% |
Medium |
| Basic Calculator II |
36.9% |
Medium |
| Number of Subsequences That Satisfy the Given Sum Condition |
36.7% |
Medium |
| Reconstruct Itinerary |
36.7% |
Medium |
| Find K Pairs with Smallest Sums |
36.7% |
Medium |
| Vertical Order Traversal of a Binary Tree |
36.6% |
Medium |
| Search a 2D Matrix |
36.5% |
Medium |
| Copy List with Random Pointer |
36.4% |
Medium |
| ZigZag Conversion |
36.3% |
Medium |
| Evaluate Reverse Polish Notation |
36.3% |
Medium |
| Find First and Last Position of Element in Sorted Array |
36.2% |
Medium |
| H-Index |
36.1% |
Medium |
| Minimum Knight Moves |
36.1% |
Medium |
| H-Index II |
36.0% |
Medium |
| Largest BST Subtree |
35.8% |
Medium |
| Number of Longest Increasing Subsequence |
35.7% |
Medium |
| Restore IP Addresses |
35.6% |
Medium |
| Majority Element II |
35.6% |
Medium |
| Word Search |
35.6% |
Medium |
| Coin Change |
35.5% |
Medium |
| Remove Nth Node From End of List |
35.2% |
Medium |
| Clone Graph |
34.8% |
Medium |
| Range Sum Query - Mutable |
34.6% |
Medium |
| Jump Game |
34.6% |
Medium |
| Unique Paths II |
34.6% |
Medium |
| Search in Rotated Sorted Array |
34.5% |
Medium |
| Reported Posts II |
34.4% |
Medium |
| Design Snake Game |
34.2% |
Medium |
| Spiral Matrix |
34.1% |
Medium |
| Add Two Numbers |
33.9% |
Medium |
| Multiply Strings |
33.9% |
Medium |
| 4Sum |
33.7% |
Medium |
| Maximum Sum Circular Subarray |
33.7% |
Medium |
| LRU Cache |
33.2% |
Medium |
| Search in Rotated Sorted Array II |
33.0% |
Medium |
| Simplify Path |
32.6% |
Medium |
| Next Permutation |
32.6% |
Medium |
| Valid Tic-Tac-Toe State |
32.6% |
Medium |
| One Edit Distance |
32.3% |
Medium |
| Minimum Height Trees |
32.3% |
Medium |
| Next Greater Element III |
31.7% |
Medium |
| Nth Digit |
31.7% |
Medium |
| Maximum Product Subarray |
31.7% |
Medium |
| Insert into a Sorted Circular Linked List |
31.6% |
Medium |
| Valid Parenthesis String |
31.0% |
Medium |
| Longest Substring Without Repeating Characters |
30.4% |
Medium |
| Second Degree Follower |
30.3% |
Medium |
| Pow(x;n) |
30.3% |
Medium |
| Rotate List |
30.0% |
Medium |
| Wiggle Sort II |
29.9% |
Medium |
| Word Ladder |
29.6% |
Medium |
| Longest Palindromic Substring |
29.5% |
Medium |
| Largest Number |
28.8% |
Medium |
| Remove K Digits |
28.4% |
Medium |
| Surrounded Regions |
28.1% |
Medium |
| Validate Binary Search Tree |
27.8% |
Medium |
| 3Sum |
26.8% |
Medium |
| Word Frequency |
25.8% |
Medium |
| Decode Ways |
24.7% |
Medium |
| Continuous Subarray Sum |
24.6% |
Medium |
| Missing Ranges |
24.3% |
Medium |
| Validate IP Address |
24.1% |
Medium |
| Reverse Words in a String |
21.9% |
Medium |
| Fraction to Recurring Decimal |
21.6% |
Medium |
| Divide Two Integers |
16.4% |
Medium |
| String to Integer (atoi) |
15.4% |
Medium |
| Robot Room Cleaner |
69.7% |
Hard |
| Employee Free Time |
66.3% |
Hard |
| Number of Ways to Paint N × 3 Grid |
61.1% |
Hard |
| Report Contiguous Dates |
61.1% |
Hard |
| Find the Kth Smallest Sum of a Matrix With Sorted Rows |
59.5% |
Hard |
| Serialize and Deserialize N-ary Tree |
59.4% |
Hard |
| Sliding Puzzle |
59.3% |
Hard |
| Best Meeting Point |
57.5% |
Hard |
| Binary Tree Postorder Traversal |
55.0% |
Hard |
| Swim in Rising Water |
53.1% |
Hard |
| Smallest Range Covering Elements from K Lists |
52.4% |
Hard |
| Burst Balloons |
51.8% |
Hard |
| Closest Binary Search Tree Value II |
50.5% |
Hard |
| Number of Atoms |
49.0% |
Hard |
| Trapping Rain Water |
48.9% |
Hard |
| Stream of Characters |
48.3% |
Hard |
| Valid Palindrome III |
47.8% |
Hard |
| Serialize and Deserialize Binary Tree |
47.5% |
Hard |
| Data Stream as Disjoint Intervals |
47.3% |
Hard |
| Minimum Number of K Consecutive Bit Flips |
46.8% |
Hard |
| N-Queens |
46.6% |
Hard |
| 24 Game |
46.4% |
Hard |
| Maximum Sum of 3 Non-Overlapping Subarrays |
46.3% |
Hard |
| Guess the Word |
46.1% |
Hard |
| Making A Large Island |
45.7% |
Hard |
| Longest Consecutive Sequence |
45.1% |
Hard |
| Edit Distance |
44.8% |
Hard |
| Design Search Autocomplete System |
44.7% |
Hard |
| Paint House II |
44.6% |
Hard |
| Split Array Largest Sum |
44.5% |
Hard |
| Find Median from Data Stream |
44.3% |
Hard |
| Longest Substring with At Most K Distinct Characters |
44.1% |
Hard |
| Concatenated Words |
43.7% |
Hard |
| Sudoku Solver |
43.6% |
Hard |
| Longest Increasing Path in a Matrix |
43.4% |
Hard |
| Word Pattern II |
43.4% |
Hard |
| Remove Invalid Parentheses |
43.3% |
Hard |
| Number of Ways to Stay in the Same Place After Some Steps |
43.2% |
Hard |
| Sliding Window Maximum |
43.0% |
Hard |
| Stickers to Spell Word |
42.9% |
Hard |
| Stamping The Sequence |
42.8% |
Hard |
| Trapping Rain Water II |
42.4% |
Hard |
| Reverse Nodes in k-Group |
42.1% |
Hard |
| Count Different Palindromic Subsequences |
41.8% |
Hard |
| Find Minimum in Rotated Sorted Array II |
41.6% |
Hard |
| Count of Smaller Numbers After Self |
41.5% |
Hard |
| Shortest Distance from All Buildings |
41.4% |
Hard |
| Basic Calculator III |
41.3% |
Hard |
| Maximum Vacation Days |
40.8% |
Hard |
| Merge k Sorted Lists |
40.2% |
Hard |
| Number of Islands II |
40.1% |
Hard |
| Recover Binary Search Tree |
39.7% |
Hard |
| Frog Jump |
39.7% |
Hard |
| Strobogrammatic Number III |
39.6% |
Hard |
| Similar String Groups |
38.6% |
Hard |
| Permutation Sequence |
38.4% |
Hard |
| Maximal Rectangle |
37.7% |
Hard |
| Binary Tree Cameras |
37.5% |
Hard |
| Best Time to Buy and Sell Stock III |
37.5% |
Hard |
| Max Sum of Rectangle No Larger Than K |
37.3% |
Hard |
| Sliding Window Median |
37.2% |
Hard |
| Basic Calculator |
36.8% |
Hard |
| Remove Duplicate Letters |
35.8% |
Hard |
| Range Sum Query 2D - Mutable |
35.6% |
Hard |
| Expression Add Operators |
35.5% |
Hard |
| Largest Rectangle in Histogram |
35.2% |
Hard |
| Rearrange String k Distance Apart |
34.9% |
Hard |
| Word Search II |
34.9% |
Hard |
| Minimum Window Substring |
34.6% |
Hard |
| The Skyline Problem |
34.6% |
Hard |
| Binary Tree Maximum Path Sum |
34.3% |
Hard |
| Insert Delete GetRandom O(1) - Duplicates allowed |
34.1% |
Hard |
| Prefix and Suffix Search |
34.1% |
Hard |
| Read N Characters Given Read4 II - Call multiple times |
33.8% |
Hard |
| Maximum Number of Darts Inside of a Circular Dartboard |
33.7% |
Hard |
| Palindrome Pairs |
33.7% |
Hard |
| Insert Interval |
33.5% |
Hard |
| Alien Dictionary |
33.3% |
Hard |
| Arithmetic Slices II - Subsequence |
32.7% |
Hard |
| Word Break II |
32.6% |
Hard |
| All O`one Data Structure |
32.4% |
Hard |
| First Missing Positive |
32.0% |
Hard |
| Jump Game II |
30.6% |
Hard |
| Shortest Palindrome |
29.8% |
Hard |
| Median of Two Sorted Arrays |
29.6% |
Hard |
| Longest Valid Parentheses |
28.4% |
Hard |
| Best Time to Buy and Sell Stock IV |
28.0% |
Hard |
| Text Justification |
27.7% |
Hard |
| Super Egg Drop |
27.1% |
Hard |
| Integer to English Words |
27.1% |
Hard |
| Regular Expression Matching |
26.8% |
Hard |
| Decode Ways II |
26.6% |
Hard |
| Substring with Concatenation of All Words |
25.4% |
Hard |
| Wildcard Matching |
24.7% |
Hard |
| Shortest Subarray with Sum at Least K |
24.6% |
Hard |
| Word Ladder II |
22.1% |
Hard |
| Find the Closest Palindrome |
19.7% |
Hard |
| Valid Number |
15.3% |
Hard |