| Remove Vowels from a String |
89.9% |
Easy |
| Students With Invalid Departments |
89.5% |
Easy |
| Kids With the Greatest Number of Candies |
88.9% |
Easy |
| Find the Team Size |
87.8% |
Easy |
| Defanging an IP Address |
87.5% |
Easy |
| Jewels and Stones |
86.4% |
Easy |
| How Many Numbers Are Smaller Than the Current Number |
85.6% |
Easy |
| Split a String in Balanced Strings |
83.3% |
Easy |
| Product Sales Analysis I |
83.1% |
Easy |
| Product Sales Analysis II |
82.9% |
Easy |
| Average Selling Price |
81.6% |
Easy |
| Range Sum of BST |
81.3% |
Easy |
| Reformat Department Table |
80.6% |
Easy |
| High Five |
79.7% |
Easy |
| Minimum Time Visiting All Points |
79.6% |
Easy |
| Armstrong Number |
78.2% |
Easy |
| Customer Order Frequency |
76.8% |
Easy |
| Count Negative Numbers in a Sorted Matrix |
76.5% |
Easy |
| List the Products Ordered in a Period |
76.4% |
Easy |
| Find N Unique Integers Sum up to Zero |
76.3% |
Easy |
| Replace Elements with Greatest Element on Right Side |
75.4% |
Easy |
| Sum of Digits in the Minimum Number |
74.6% |
Easy |
| Traffic Light Controlled Intersection |
74.3% |
Easy |
| Sort Array By Parity |
74.1% |
Easy |
| Merge Two Binary Trees |
74.1% |
Easy |
| Nested List Weight Sum |
74.0% |
Easy |
| Robot Return to Origin |
73.5% |
Easy |
| Can Make Arithmetic Progression From Sequence |
73.3% |
Easy |
| Customer Placing the Largest Number of Orders |
73.0% |
Easy |
| Hamming Distance |
72.8% |
Easy |
| DI String Match |
72.6% |
Easy |
| Find Customer Referee |
72.3% |
Easy |
| N-ary Tree Postorder Traversal |
72.1% |
Easy |
| Squares of a Sorted Array |
72.1% |
Easy |
| Array Partition I |
72.0% |
Easy |
| Sales Analysis I |
71.8% |
Easy |
| Actors and Directors Who Cooperated At Least Three Times |
71.7% |
Easy |
| Peak Index in a Mountain Array |
71.6% |
Easy |
| Height Checker |
71.1% |
Easy |
| Moving Average from Data Stream |
70.9% |
Easy |
| Logger Rate Limiter |
70.8% |
Easy |
| Subdomain Visit Count |
69.9% |
Easy |
| Reverse Words in a String III |
69.8% |
Easy |
| Sort Array By Parity II |
69.3% |
Easy |
| The K Weakest Rows in a Matrix |
68.8% |
Easy |
| Maximum Depth of N-ary Tree |
68.7% |
Easy |
| Remove All Adjacent Duplicates In String |
68.6% |
Easy |
| Reverse String |
68.5% |
Easy |
| Middle of the Linked List |
68.4% |
Easy |
| Univalued Binary Tree |
67.7% |
Easy |
| Relative Sort Array |
67.7% |
Easy |
| Find Common Characters |
67.6% |
Easy |
| Unique Email Addresses |
67.4% |
Easy |
| Find Words That Can Be Formed by Characters |
67.4% |
Easy |
| Fibonacci Number |
67.2% |
Easy |
| Sum of Root To Leaf Binary Numbers |
67.2% |
Easy |
| Largest Unique Number |
66.8% |
Easy |
| Maximum Depth of Binary Tree |
66.0% |
Easy |
| Island Perimeter |
65.7% |
Easy |
| Print in Order |
65.7% |
Easy |
| Single Number |
65.5% |
Easy |
| Invert Binary Tree |
65.0% |
Easy |
| Leaf-Similar Trees |
64.5% |
Easy |
| Design HashSet |
64.3% |
Easy |
| Delete Node in a Linked List |
63.8% |
Easy |
| Next Greater Element I |
63.8% |
Easy |
| Baseball Game |
63.7% |
Easy |
| Uncommon Words from Two Sentences |
63.3% |
Easy |
| Prime Number of Set Bits in Binary Representation |
63.2% |
Easy |
| Average of Levels in Binary Tree |
63.1% |
Easy |
| Trim a Binary Search Tree |
63.0% |
Easy |
| Reverse Linked List |
62.5% |
Easy |
| Intersection of Two Arrays |
62.5% |
Easy |
| Fizz Buzz |
62.3% |
Easy |
| Last Stone Weight |
62.2% |
Easy |
| Palindrome Permutation |
61.9% |
Easy |
| String Matching in an Array |
61.4% |
Easy |
| Shift 2D Grid |
61.4% |
Easy |
| Design HashMap |
61.3% |
Easy |
| Shortest Word Distance |
61.0% |
Easy |
| Combine Two Tables |
60.8% |
Easy |
| Index Pairs of a String |
60.7% |
Easy |
| Two Sum Less Than K |
60.6% |
Easy |
| Remove Palindromic Subsequences |
60.1% |
Easy |
| Majority Element |
58.7% |
Easy |
| Convert Sorted Array to Binary Search Tree |
57.9% |
Easy |
| Move Zeroes |
57.8% |
Easy |
| Number of Days in a Month |
57.4% |
Easy |
| Employee Importance |
57.3% |
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 |
| Two City Scheduling |
56.1% |
Easy |
| Contains Duplicate |
56.0% |
Easy |
| Excel Sheet Column Number |
55.9% |
Easy |
| Path Crossing |
55.9% |
Easy |
| Roman to Integer |
55.7% |
Easy |
| Two Sum IV - Input is a BST |
55.5% |
Easy |
| Convert BST to Greater Tree |
55.4% |
Easy |
| Find the Difference |
55.3% |
Easy |
| Flood Fill |
55.3% |
Easy |
| Meeting Rooms |
54.6% |
Easy |
| Max Consecutive Ones |
54.6% |
Easy |
| Sales Analysis III |
54.3% |
Easy |
| Reorder Data in Log Files |
54.3% |
Easy |
| Two Sum II - Input array is sorted |
54.1% |
Easy |
| Construct String from Binary Tree |
54.1% |
Easy |
| Verifying an Alien Dictionary |
54.1% |
Easy |
| Diet Plan Performance |
53.8% |
Easy |
| Merge Two Sorted Lists |
53.5% |
Easy |
| Binary Tree Level Order Traversal II |
53.5% |
Easy |
| First Unique Character in a String |
53.4% |
Easy |
| Customers Who Never Order |
53.4% |
Easy |
| Same Tree |
53.4% |
Easy |
| Ransom Note |
53.1% |
Easy |
| Find Winner on a Tic Tac Toe Game |
52.8% |
Easy |
| Friendly Movies Streamed Last Month |
52.6% |
Easy |
| Minimum Distance Between BST Nodes |
52.6% |
Easy |
| Pascal's Triangle |
52.5% |
Easy |
| Binary Search |
52.1% |
Easy |
| Cousins in Binary Tree |
52.0% |
Easy |
| Partition Array Into Three Parts With Equal Sum |
51.8% |
Easy |
| Number of Boomerangs |
51.8% |
Easy |
| Missing Number |
51.7% |
Easy |
| Lemonade Change |
51.6% |
Easy |
| Image Smoother |
51.5% |
Easy |
| Binary Tree Paths |
51.5% |
Easy |
| Intersection of Two Arrays II |
51.4% |
Easy |
| Maximize Sum Of Array After K Negations |
51.3% |
Easy |
| Prime Arrangements |
51.0% |
Easy |
| Sum of Left Leaves |
50.9% |
Easy |
| Best Time to Buy and Sell Stock |
50.5% |
Easy |
| Sales Analysis II |
50.5% |
Easy |
| Happy Number |
50.4% |
Easy |
| Longest Palindrome |
50.3% |
Easy |
| Min Cost Climbing Stairs |
50.3% |
Easy |
| Minimum Moves to Equal Array Elements |
50.2% |
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 |
| Implement Queue using Stacks |
49.6% |
Easy |
| Rotate String |
49.6% |
Easy |
| Is Subsequence |
49.2% |
Easy |
| Pascal's Triangle II |
49.0% |
Easy |
| Number of Days Between Two Dates |
48.8% |
Easy |
| Rectangle Overlap |
48.6% |
Easy |
| Closest Binary Search Tree Value |
48.5% |
Easy |
| Diameter of Binary Tree |
48.4% |
Easy |
| Reverse String II |
48.4% |
Easy |
| Palindrome Number |
48.4% |
Easy |
| Longest Word in Dictionary |
48.2% |
Easy |
| Remove Element |
48.2% |
Easy |
| Climbing Stairs |
47.8% |
Easy |
| Add Strings |
47.5% |
Easy |
| Pairs of Songs With Total Durations Divisible by 60 |
47.4% |
Easy |
| Number of Equivalent Domino Pairs |
47.3% |
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 |
| Implement Stack using Queues |
45.1% |
Easy |
| Remove Duplicates from Sorted Array |
45.1% |
Easy |
| Most Common Word |
44.8% |
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 |
| Subtree of Another Tree |
44.1% |
Easy |
| Find Pivot Index |
44.0% |
Easy |
| Power of Two |
43.7% |
Easy |
| Balanced Binary Tree |
43.5% |
Easy |
| Plus One |
43.0% |
Easy |
| Second Minimum Node In a Binary Tree |
42.7% |
Easy |
| Max Stack |
42.6% |
Easy |
| Maximize Distance to Closest Person |
42.6% |
Easy |
| Search Insert Position |
42.6% |
Easy |
| Find Mode in Binary Search Tree |
42.4% |
Easy |
| Bulls and Cows |
42.4% |
Easy |
| Repeated Substring Pattern |
42.2% |
Easy |
| Set Mismatch |
42.1% |
Easy |
| House Robber |
42.0% |
Easy |
| Valid Perfect Square |
41.7% |
Easy |
| String Compression |
41.3% |
Easy |
| Path Sum |
41.2% |
Easy |
| Delete Duplicate Emails |
41.1% |
Easy |
| Linked List Cycle |
41.1% |
Easy |
| Intersection of Two Linked Lists |
40.6% |
Easy |
| Reverse Bits |
39.8% |
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 |
| Contains Duplicate II |
37.7% |
Easy |
| Design Compressed String Iterator |
37.5% |
Easy |
| Minimum Depth of Binary Tree |
37.4% |
Easy |
| Word Pattern |
37.0% |
Easy |
| Valid Palindrome |
36.7% |
Easy |
| Longest Univalue Path |
36.2% |
Easy |
| First Bad Version |
35.7% |
Easy |
| Perfect Number |
35.5% |
Easy |
| Longest Common Prefix |
35.4% |
Easy |
| Rotate Array |
34.7% |
Easy |
| Implement strStr() |
34.5% |
Easy |
| Sqrt(x) |
33.9% |
Easy |
| Heaters |
33.1% |
Easy |
| Repeated String Match |
32.3% |
Easy |
| Second Highest Salary |
31.6% |
Easy |
| Can Place Flowers |
31.6% |
Easy |
| K-diff Pairs in an Array |
31.6% |
Easy |
| Count Primes |
31.5% |
Easy |
| Shortest Unsorted Continuous Subarray |
31.1% |
Easy |
| Third Maximum Number |
30.5% |
Easy |
| Reverse Integer |
25.8% |
Easy |
| Non-decreasing Array |
19.5% |
Easy |
| All People Report to the Given Manager |
87.1% |
Medium |
| Clone N-ary Tree |
84.5% |
Medium |
| Max Increase to Keep City Skyline |
83.7% |
Medium |
| Sum of Nodes with Even-Valued Grandparent |
83.5% |
Medium |
| Count Number of Teams |
82.0% |
Medium |
| Queries on a Permutation With Key |
81.7% |
Medium |
| Clone Binary Tree With Random Pointer |
81.0% |
Medium |
| Binary Search Tree to Greater Sum Tree |
80.8% |
Medium |
| NPV Queries |
80.6% |
Medium |
| Encode and Decode TinyURL |
79.9% |
Medium |
| Maximum Binary Tree |
79.9% |
Medium |
| Construct Binary Search Tree from Preorder Traversal |
78.4% |
Medium |
| All Paths From Source to Target |
77.9% |
Medium |
| Insert into a Binary Search Tree |
77.7% |
Medium |
| All Elements in Two Binary Search Trees |
76.1% |
Medium |
| Partition Labels |
76.1% |
Medium |
| Find Smallest Common Element in All Rows |
74.9% |
Medium |
| Balance a Binary Search Tree |
74.8% |
Medium |
| Binary Tree Pruning |
74.5% |
Medium |
| Minimum Add to Make Parentheses Valid |
73.7% |
Medium |
| Find and Replace Pattern |
73.4% |
Medium |
| Delete Leaves With a Given Value |
73.0% |
Medium |
| Find K-Length Substrings With No Repeated Characters |
72.7% |
Medium |
| Maximum Level Sum of a Binary Tree |
72.2% |
Medium |
| Path In Zigzag Labelled Binary Tree |
72.0% |
Medium |
| Find Leaves of Binary Tree |
70.6% |
Medium |
| Design Bounded Blocking Queue |
70.5% |
Medium |
| Battleships in a Board |
70.0% |
Medium |
| Counting Bits |
69.5% |
Medium |
| Distribute Coins in Binary Tree |
68.9% |
Medium |
| Find All Duplicates in an Array |
67.8% |
Medium |
| Customers Who Bought All Products |
67.7% |
Medium |
| Two Sum BSTs |
67.6% |
Medium |
| Pancake Sorting |
67.5% |
Medium |
| Complex Number Multiplication |
67.4% |
Medium |
| Interval List Intersections |
67.3% |
Medium |
| Pseudo-Palindromic Paths in a Binary Tree |
67.3% |
Medium |
| Delete Nodes And Return Forest |
67.0% |
Medium |
| Queue Reconstruction by Height |
66.9% |
Medium |
| Search in a Sorted Array of Unknown Size |
66.9% |
Medium |
| Construct Binary Tree from Preorder and Postorder Traversal |
66.2% |
Medium |
| Minimum Cost Tree From Leaf Values |
66.1% |
Medium |
| Maximum Difference Between Node and Ancestor |
66.0% |
Medium |
| Managers with at Least 5 Direct Reports |
66.0% |
Medium |
| Flip Equivalent Binary Trees |
65.8% |
Medium |
| Custom Sort String |
65.7% |
Medium |
| Path with Maximum Gold |
65.1% |
Medium |
| N-ary Tree Level Order Traversal |
65.0% |
Medium |
| Letter Case Permutation |
64.6% |
Medium |
| Web Crawler |
64.3% |
Medium |
| Keys and Rooms |
64.3% |
Medium |
| Single Number III |
64.3% |
Medium |
| Sort an Array |
63.9% |
Medium |
| K Closest Points to Origin |
63.8% |
Medium |
| Wiggle Sort |
63.8% |
Medium |
| Design Hit Counter |
63.7% |
Medium |
| Permutations |
63.5% |
Medium |
| Binary Tree Inorder Traversal |
63.3% |
Medium |
| Daily Temperatures |
63.3% |
Medium |
| Search Suggestions System |
63.2% |
Medium |
| Sort Characters By Frequency |
63.0% |
Medium |
| Minimum Cost to Connect Sticks |
62.8% |
Medium |
| Generate Parentheses |
62.7% |
Medium |
| Max Area of Island |
62.7% |
Medium |
| Bulb Switcher III |
62.6% |
Medium |
| Minimum Falling Path Sum |
62.5% |
Medium |
| Minimum Remove to Make Valid Parentheses |
62.5% |
Medium |
| Exchange Seats |
62.3% |
Medium |
| Subsets |
62.0% |
Medium |
| Sparse Matrix Multiplication |
61.9% |
Medium |
| Maximum Average Subtree |
61.9% |
Medium |
| Angle Between Hands of a Clock |
61.4% |
Medium |
| Construct Quad Tree |
61.4% |
Medium |
| Top K Frequent Elements |
61.2% |
Medium |
| Find Largest Value in Each Tree Row |
61.1% |
Medium |
| Kill Process |
60.8% |
Medium |
| Design A Leaderboard |
60.7% |
Medium |
| Palindromic Substrings |
60.6% |
Medium |
| Score of Parentheses |
60.5% |
Medium |
| Number of Closed Islands |
60.5% |
Medium |
| Minimum Cost For Tickets |
60.5% |
Medium |
| Online Stock Span |
60.2% |
Medium |
| Kth Smallest Element in a BST |
60.2% |
Medium |
| Minimum Swaps to Make Strings Equal |
60.1% |
Medium |
| Product of Array Except Self |
60.1% |
Medium |
| Tree Diameter |
60.1% |
Medium |
| Find Duplicate File in System |
59.5% |
Medium |
| Remove Sub-Folders from the Filesystem |
59.5% |
Medium |
| Convert Binary Search Tree to Sorted Doubly Linked List |
59.1% |
Medium |
| Max Consecutive Ones III |
59.1% |
Medium |
| Minesweeper |
59.1% |
Medium |
| Design Log Storage System |
58.6% |
Medium |
| Friend Circles |
58.6% |
Medium |
| Longest Common Subsequence |
58.4% |
Medium |
| Zigzag Iterator |
58.4% |
Medium |
| Plus One Linked List |
58.2% |
Medium |
| Capacity To Ship Packages Within D Days |
58.1% |
Medium |
| Arithmetic Slices |
57.9% |
Medium |
| Most Frequent Subtree Sum |
57.9% |
Medium |
| Remove Covered Intervals |
57.9% |
Medium |
| Maximum Sum of Two Non-Overlapping Subarrays |
57.9% |
Medium |
| Count Servers that Communicate |
57.9% |
Medium |
| Single Element in a Sorted Array |
57.9% |
Medium |
| Campus Bikes |
57.7% |
Medium |
| Connecting Cities With Minimum Cost |
57.5% |
Medium |
| Redundant Connection |
57.4% |
Medium |
| Next Greater Node In Linked List |
57.4% |
Medium |
| Complete Binary Tree Inserter |
57.3% |
Medium |
| Longest Repeating Substring |
57.2% |
Medium |
| Find the Index of the Large Integer |
57.1% |
Medium |
| Camelcase Matching |
57.0% |
Medium |
| Group Anagrams |
56.9% |
Medium |
| Design File System |
56.8% |
Medium |
| Optimal Division |
56.8% |
Medium |
| Closest Divisors |
56.8% |
Medium |
| Car Pooling |
56.7% |
Medium |
| Rotate Image |
56.7% |
Medium |
| Combination Sum III |
56.6% |
Medium |
| Binary Search Tree Iterator |
56.6% |
Medium |
| Next Greater Element II |
56.5% |
Medium |
| Count Number of Nice Subarrays |
56.4% |
Medium |
| Uncrossed Lines |
56.1% |
Medium |
| Combination Sum |
56.1% |
Medium |
| Number of Distinct Islands |
56.0% |
Medium |
| Number of Connected Components in an Undirected Graph |
56.0% |
Medium |
| Split BST |
55.8% |
Medium |
| Odd Even Linked List |
55.7% |
Medium |
| Binary Tree Preorder Traversal |
55.7% |
Medium |
| Find the Duplicate Number |
55.5% |
Medium |
| All Nodes Distance K in Binary Tree |
55.4% |
Medium |
| Kth Largest Element in an Array |
55.4% |
Medium |
| Different Ways to Add Parentheses |
55.2% |
Medium |
| Integer to Roman |
55.1% |
Medium |
| Group Shifted Strings |
55.1% |
Medium |
| Flatten a Multilevel Doubly Linked List |
55.1% |
Medium |
| Best Time to Buy and Sell Stock with Transaction Fee |
54.7% |
Medium |
| Longest String Chain |
54.7% |
Medium |
| Combinations |
54.7% |
Medium |
| Binary Tree Level Order Traversal |
54.6% |
Medium |
| Pyramid Transition Matrix |
54.6% |
Medium |
| Walls and Gates |
54.5% |
Medium |
| Missing Element in Sorted Array |
54.5% |
Medium |
| Game of Life |
54.5% |
Medium |
| Minimum Path Sum |
54.5% |
Medium |
| Add Two Numbers II |
54.5% |
Medium |
| Design Tic-Tac-Toe |
54.3% |
Medium |
| Kth Smallest Element in a Sorted Matrix |
54.3% |
Medium |
| Campus Bikes II |
54.2% |
Medium |
| Unique Paths |
54.1% |
Medium |
| Binary Tree Right Side View |
54.1% |
Medium |
| Spiral Matrix II |
53.9% |
Medium |
| Maximum XOR of Two Numbers in an Array |
53.5% |
Medium |
| RLE Iterator |
53.5% |
Medium |
| Longest Arithmetic Sequence |
53.4% |
Medium |
| Longest Palindromic Subsequence |
53.2% |
Medium |
| Time Based Key-Value Store |
53.1% |
Medium |
| Flatten Nested List Iterator |
52.9% |
Medium |
| Unique Binary Search Trees |
52.9% |
Medium |
| Shuffle an Array |
52.8% |
Medium |
| Meeting Scheduler |
52.7% |
Medium |
| Building H2O |
52.6% |
Medium |
| Maximum Number of Vowels in a Substring of Given Length |
52.4% |
Medium |
| Single Number II |
52.4% |
Medium |
| Shortest Word Distance II |
52.3% |
Medium |
| Split Linked List in Parts |
52.2% |
Medium |
| Check Completeness of a Binary Tree |
52.1% |
Medium |
| Koko Eating Bananas |
52.1% |
Medium |
| Linked List Random Node |
52.1% |
Medium |
| Count Univalue Subtrees |
52.0% |
Medium |
| Exclusive Time of Functions |
52.0% |
Medium |
| Serialize and Deserialize BST |
52.0% |
Medium |
| Maximum Length of Pair Chain |
51.9% |
Medium |
| Top K Frequent Words |
51.8% |
Medium |
| My Calendar I |
51.8% |
Medium |
| Minimum Area Rectangle |
51.8% |
Medium |
| Open the Lock |
51.8% |
Medium |
| Loud and Rich |
51.6% |
Medium |
| Evaluate Division |
51.6% |
Medium |
| Minimum Time Difference |
51.5% |
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 |
| Number of Steps to Reduce a Number in Binary Representation to One |
50.4% |
Medium |
| Smallest Subsequence of Distinct Characters |
50.4% |
Medium |
| Swap Nodes in Pairs |
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 |
| Minimum Domino Rotations For Equal Row |
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 |
| Insufficient Nodes in Root to Leaf Paths |
49.3% |
Medium |
| Flatten Binary Tree to Linked List |
49.3% |
Medium |
| Path With Maximum Minimum Value |
49.2% |
Medium |
| Video Stitching |
49.2% |
Medium |
| Rotting Oranges |
49.2% |
Medium |
| Sum Root to Leaf Numbers |
49.1% |
Medium |
| My Calendar II |
49.1% |
Medium |
| Gray Code |
49.1% |
Medium |
| Longest Happy String |
49.0% |
Medium |
| Number of Dice Rolls With Target Sum |
49.0% |
Medium |
| Subarray Sums Divisible by K |
48.9% |
Medium |
| Knight Probability in Chessboard |
48.9% |
Medium |
| Product Sales Analysis III |
48.9% |
Medium |
| Construct Binary Tree from Preorder and Inorder Traversal |
48.8% |
Medium |
| Accounts Merge |
48.8% |
Medium |
| Valid Sudoku |
48.7% |
Medium |
| Reorganize String |
48.7% |
Medium |
| Valid Triangle Number |
48.4% |
Medium |
| Android Unlock Patterns |
48.4% |
Medium |
| Binary Tree Zigzag Level Order Traversal |
48.3% |
Medium |
| Construct Binary Tree from String |
48.3% |
Medium |
| Diagonal Traverse |
48.2% |
Medium |
| Combination Sum II |
48.2% |
Medium |
| Length of Longest Fibonacci Subsequence |
48.0% |
Medium |
| Predict the Winner |
47.9% |
Medium |
| Word Subsets |
47.8% |
Medium |
| Convert Sorted List to Binary Search Tree |
47.7% |
Medium |
| The Maze II |
47.7% |
Medium |
| Insert Delete GetRandom O(1) |
47.5% |
Medium |
| Palindrome Partitioning |
47.5% |
Medium |
| Largest 1-Bordered Square |
47.5% |
Medium |
| Is Graph Bipartite? |
47.5% |
Medium |
| Best Time to Buy and Sell Stock with Cooldown |
47.4% |
Medium |
| Perfect Squares |
47.4% |
Medium |
| Number of Matching Subsequences |
47.4% |
Medium |
| Sort Colors |
47.3% |
Medium |
| Construct Binary Tree from Inorder and Postorder Traversal |
47.2% |
Medium |
| Vowel Spellchecker |
47.2% |
Medium |
| Path Sum III |
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 |
| First Unique Number |
47.0% |
Medium |
| Boats to Save People |
46.8% |
Medium |
| Count Complete Tree Nodes |
46.8% |
Medium |
| Letter Combinations of a Phone Number |
46.8% |
Medium |
| Number of Islands |
46.8% |
Medium |
| Maximum Size Subarray Sum Equals k |
46.8% |
Medium |
| Path Sum II |
46.7% |
Medium |
| Longest Turbulent Subarray |
46.6% |
Medium |
| Smallest String With Swaps |
46.5% |
Medium |
| Permutations II |
46.4% |
Medium |
| 3Sum Closest |
46.0% |
Medium |
| Bomb Enemy |
46.0% |
Medium |
| Web Crawler Multithreaded |
45.9% |
Medium |
| Sentence Similarity II |
45.8% |
Medium |
| Rank Scores |
45.8% |
Medium |
| Meeting Rooms II |
45.7% |
Medium |
| Lowest Common Ancestor of a Binary Tree |
45.7% |
Medium |
| Peeking Iterator |
45.7% |
Medium |
| Bulb Switcher |
45.4% |
Medium |
| Binary Tree Vertical Order Traversal |
45.3% |
Medium |
| Combination Sum IV |
45.3% |
Medium |
| Populating Next Right Pointers in Each Node |
45.2% |
Medium |
| Find Minimum in Rotated Sorted Array |
45.1% |
Medium |
| Partition to K Equal Sum Subsets |
45.0% |
Medium |
| Next Closest Time |
45.0% |
Medium |
| Network Delay Time |
45.0% |
Medium |
| Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree |
44.8% |
Medium |
| All Paths from Source Lead to Destination |
44.7% |
Medium |
| Logical OR of Two Binary Grids Represented as Quad-Trees |
44.6% |
Medium |
| Elimination Game |
44.5% |
Medium |
| Permutation in String |
44.4% |
Medium |
| Monotone Increasing Digits |
44.3% |
Medium |
| Last Stone Weight II |
44.2% |
Medium |
| Triangle |
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 |
| Partition Equal Subset Sum |
43.7% |
Medium |
| Design Circular Queue |
43.7% |
Medium |
| Maximum Swap |
43.6% |
Medium |
| Closest Leaf in a Binary Tree |
43.6% |
Medium |
| As Far from Land as Possible |
43.5% |
Medium |
| Analyze User Website Visit Pattern |
43.5% |
Medium |
| Reverse Words in a String II |
43.3% |
Medium |
| Find Peak Element |
43.3% |
Medium |
| Find All Anagrams in a String |
43.3% |
Medium |
| Distant Barcodes |
43.2% |
Medium |
| Search a 2D Matrix II |
43.2% |
Medium |
| Set Matrix Zeroes |
43.1% |
Medium |
| Exam Room |
43.1% |
Medium |
| Get Watched Videos by Your Friends |
43.1% |
Medium |
| Delete Node in a BST |
43.1% |
Medium |
| Course Schedule |
43.1% |
Medium |
| Non-overlapping Intervals |
42.9% |
Medium |
| Contiguous Array |
42.8% |
Medium |
| Longest Increasing Subsequence |
42.6% |
Medium |
| Fruit Into Baskets |
42.5% |
Medium |
| Sort List |
42.3% |
Medium |
| Graph Valid Tree |
42.2% |
Medium |
| Global and Local Inversions |
42.1% |
Medium |
| Ugly Number II |
42.0% |
Medium |
| Solve the Equation |
42.0% |
Medium |
| Longest Absolute File Path |
41.8% |
Medium |
| Find the Celebrity |
41.8% |
Medium |
| Minimum Genetic Mutation |
41.8% |
Medium |
| Stepping Numbers |
41.6% |
Medium |
| Partition List |
41.5% |
Medium |
| Longest Substring with At Least K Repeating Characters |
41.4% |
Medium |
| Pacific Atlantic Water Flow |
41.1% |
Medium |
| Asteroid Collision |
41.0% |
Medium |
| Maximum Width of Binary Tree |
41.0% |
Medium |
| Find K Closest Elements |
40.9% |
Medium |
| Prison Cells After N Days |
40.7% |
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 |
| Find the Derangement of An Array |
40.1% |
Medium |
| Increasing Triplet Subsequence |
40.0% |
Medium |
| 01 Matrix |
39.8% |
Medium |
| Consecutive Numbers |
39.7% |
Medium |
| Wiggle Subsequence |
39.6% |
Medium |
| Summary Ranges |
39.5% |
Medium |
| Equal Tree Partition |
39.5% |
Medium |
| Cheapest Flights Within K Stops |
39.3% |
Medium |
| Merge Intervals |
39.3% |
Medium |
| Populating Next Right Pointers in Each Node II |
39.1% |
Medium |
| Minimum Swaps To Make Sequences Increasing |
38.9% |
Medium |
| Boundary of Binary Tree |
38.9% |
Medium |
| Shortest Path with Alternating Colors |
38.9% |
Medium |
| Repeated DNA Sequences |
38.9% |
Medium |
| Reverse Linked List II |
38.8% |
Medium |
| Range Sum Query 2D - Immutable |
38.6% |
Medium |
| Gas Station |
38.5% |
Medium |
| Most Profit Assigning Work |
38.5% |
Medium |
| Snakes and Ladders |
38.4% |
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 |
| Largest Divisible Subset |
38.0% |
Medium |
| Matchsticks to Square |
37.7% |
Medium |
| Maximal Square |
37.7% |
Medium |
| UTF-8 Validation |
37.5% |
Medium |
| Linked List Cycle II |
37.3% |
Medium |
| Maximum Product of Splitted Binary Tree |
37.2% |
Medium |
| K-th Symbol in Grammar |
37.2% |
Medium |
| Reorder List |
37.1% |
Medium |
| Snapshot Array |
37.0% |
Medium |
| Basic Calculator II |
36.9% |
Medium |
| Remove Duplicates from Sorted List II |
36.8% |
Medium |
| Reconstruct Itinerary |
36.7% |
Medium |
| Department Highest Salary |
36.7% |
Medium |
| Find K Pairs with Smallest Sums |
36.7% |
Medium |
| Vertical Order Traversal of a Binary Tree |
36.6% |
Medium |
| House Robber II |
36.5% |
Medium |
| Search a 2D Matrix |
36.5% |
Medium |
| Palindrome Permutation II |
36.4% |
Medium |
| Copy List with Random Pointer |
36.4% |
Medium |
| Evaluate Reverse Polish Notation |
36.3% |
Medium |
| Split Array into Fibonacci Sequence |
36.3% |
Medium |
| ZigZag Conversion |
36.3% |
Medium |
| Rotate Function |
36.3% |
Medium |
| Find First and Last Position of Element in Sorted Array |
36.2% |
Medium |
| Minimum Knight Moves |
36.1% |
Medium |
| Largest BST Subtree |
35.8% |
Medium |
| Number of Longest Increasing Subsequence |
35.7% |
Medium |
| Majority Element II |
35.6% |
Medium |
| Restore IP Addresses |
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 |
| Unique Paths II |
34.6% |
Medium |
| Jump Game |
34.6% |
Medium |
| Search in Rotated Sorted Array |
34.5% |
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 |
| Integer Replacement |
32.9% |
Medium |
| Next Permutation |
32.6% |
Medium |
| Simplify Path |
32.6% |
Medium |
| Valid Tic-Tac-Toe State |
32.6% |
Medium |
| Minimum Height Trees |
32.3% |
Medium |
| One Edit Distance |
32.3% |
Medium |
| Line Reflection |
31.8% |
Medium |
| Maximum Product Subarray |
31.7% |
Medium |
| Next Greater Element III |
31.7% |
Medium |
| Insert into a Sorted Circular Linked List |
31.6% |
Medium |
| Nth Highest Salary |
31.4% |
Medium |
| Valid Parenthesis String |
31.0% |
Medium |
| Water and Jug Problem |
30.6% |
Medium |
| Longest Substring Without Repeating Characters |
30.4% |
Medium |
| Pow(x;n) |
30.3% |
Medium |
| Design Twitter |
30.3% |
Medium |
| Rotate List |
30.0% |
Medium |
| Word Ladder |
29.6% |
Medium |
| Longest Palindromic Substring |
29.5% |
Medium |
| 132 Pattern |
28.9% |
Medium |
| Largest Number |
28.8% |
Medium |
| Remove K Digits |
28.4% |
Medium |
| Surrounded Regions |
28.1% |
Medium |
| Validate Binary Search Tree |
27.8% |
Medium |
| Compare Version Numbers |
27.4% |
Medium |
| 3Sum |
26.8% |
Medium |
| Word Frequency |
25.8% |
Medium |
| Prime Palindrome |
24.9% |
Medium |
| Decode Ways |
24.7% |
Medium |
| Continuous Subarray Sum |
24.6% |
Medium |
| Design Linked List |
24.5% |
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 |
| Sales by Day of the Week |
83.4% |
Hard |
| Unique Paths III |
73.3% |
Hard |
| Recover a Tree From Preorder Traversal |
69.9% |
Hard |
| Robot Room Cleaner |
69.7% |
Hard |
| Maximum Score Words Formed by Letters |
69.4% |
Hard |
| Employee Free Time |
66.2% |
Hard |
| Maximum Frequency Stack |
60.6% |
Hard |
| Number of Submatrices That Sum to Target |
60.4% |
Hard |
| My Calendar III |
60.0% |
Hard |
| Serialize and Deserialize N-ary Tree |
59.4% |
Hard |
| Sliding Puzzle |
59.3% |
Hard |
| N-Queens II |
57.9% |
Hard |
| Minimum Difficulty of a Job Schedule |
57.6% |
Hard |
| Best Meeting Point |
57.5% |
Hard |
| Binary Tree Postorder Traversal |
55.0% |
Hard |
| Students Report By Geography |
55.0% |
Hard |
| Couples Holding Hands |
54.3% |
Hard |
| Handshakes That Don't Cross |
53.5% |
Hard |
| Smallest Range Covering Elements from K Lists |
52.4% |
Hard |
| Orderly Queue |
52.2% |
Hard |
| Shortest Path Visiting All Nodes |
52.0% |
Hard |
| Burst Balloons |
51.8% |
Hard |
| Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree |
50.6% |
Hard |
| Closest Binary Search Tree Value II |
50.5% |
Hard |
| Number of Atoms |
49.0% |
Hard |
| Trapping Rain Water |
48.9% |
Hard |
| Subarrays with K Different Integers |
48.6% |
Hard |
| Critical Connections in a Network |
48.6% |
Hard |
| Stream of Characters |
48.3% |
Hard |
| Basic Calculator IV |
48.1% |
Hard |
| Serialize and Deserialize Binary Tree |
47.5% |
Hard |
| Data Stream as Disjoint Intervals |
47.3% |
Hard |
| Number of Distinct Islands II |
47.3% |
Hard |
| Optimal Account Balancing |
46.9% |
Hard |
| Minimum Number of K Consecutive Bit Flips |
46.8% |
Hard |
| N-Queens |
46.6% |
Hard |
| 24 Game |
46.4% |
Hard |
| Guess the Word |
46.1% |
Hard |
| Design In-Memory File System |
45.9% |
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 |
| 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 |
| Remove Invalid Parentheses |
43.3% |
Hard |
| Sliding Window Maximum |
43.0% |
Hard |
| Find the Shortest Superstring |
42.9% |
Hard |
| Bus Routes |
42.5% |
Hard |
| Trapping Rain Water II |
42.4% |
Hard |
| Reverse Nodes in k-Group |
42.1% |
Hard |
| Minimize Malware Spread |
42.0% |
Hard |
| Minimum Window Subsequence |
41.8% |
Hard |
| Falling Squares |
41.8% |
Hard |
| Human Traffic of Stadium |
41.7% |
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 Sum BST in Binary Tree |
40.2% |
Hard |
| Merge k Sorted Lists |
40.2% |
Hard |
| Shortest Path to Get All Keys |
40.1% |
Hard |
| Number of Islands II |
40.1% |
Hard |
| Digit Count in Range |
40.0% |
Hard |
| Minimum Cost to Merge Stones |
39.8% |
Hard |
| Frog Jump |
39.7% |
Hard |
| Recover Binary Search Tree |
39.7% |
Hard |
| Similar String Groups |
38.6% |
Hard |
| Range Module |
38.5% |
Hard |
| Permutation Sequence |
38.4% |
Hard |
| Distinct Subsequences |
38.3% |
Hard |
| Super Washing Machines |
38.3% |
Hard |
| Dinner Plate Stacks |
38.2% |
Hard |
| K-Similar Strings |
38.2% |
Hard |
| Maximal Rectangle |
37.7% |
Hard |
| Best Time to Buy and Sell Stock III |
37.5% |
Hard |
| Sliding Window Median |
37.2% |
Hard |
| Find Cumulative Salary of an Employee |
37.0% |
Hard |
| Basic Calculator |
36.8% |
Hard |
| String Transforms Into Another String |
35.8% |
Hard |
| Remove Duplicate Letters |
35.8% |
Hard |
| Russian Doll Envelopes |
35.6% |
Hard |
| K Empty Slots |
35.6% |
Hard |
| Maximum Gap |
35.5% |
Hard |
| Largest Rectangle in Histogram |
35.2% |
Hard |
| Word Search II |
34.9% |
Hard |
| Rearrange String k Distance Apart |
34.9% |
Hard |
| Minimum Window Substring |
34.6% |
Hard |
| Cut Off Trees for Golf Event |
34.6% |
Hard |
| The Skyline Problem |
34.6% |
Hard |
| Department Top Three Salaries |
34.5% |
Hard |
| Binary Tree Maximum Path Sum |
34.3% |
Hard |
| LFU Cache |
34.2% |
Hard |
| Insert Delete GetRandom O(1) - Duplicates allowed |
34.1% |
Hard |
| Cherry Pickup |
33.9% |
Hard |
| Read N Characters Given Read4 II - Call multiple times |
33.8% |
Hard |
| Palindrome Pairs |
33.7% |
Hard |
| Insert Interval |
33.5% |
Hard |
| Largest Multiple of Three |
33.5% |
Hard |
| Alien Dictionary |
33.3% |
Hard |
| Maximum Number of Non-Overlapping Substrings |
32.8% |
Hard |
| Trips and Users |
32.7% |
Hard |
| Word Break II |
32.6% |
Hard |
| Random Pick with Blacklist |
32.5% |
Hard |
| All O`one Data Structure |
32.4% |
Hard |
| Dungeon Game |
32.3% |
Hard |
| First Missing Positive |
32.0% |
Hard |
| Longest Duplicate Substring |
31.9% |
Hard |
| Candy |
31.6% |
Hard |
| Design Excel Sum Formula |
31.6% |
Hard |
| Interleaving String |
31.5% |
Hard |
| Numbers At Most N Given Digit Set |
31.5% |
Hard |
| Find K-th Smallest Pair Distance |
31.5% |
Hard |
| Minimum Number of Refueling Stops |
31.4% |
Hard |
| Number of Digit One |
31.3% |
Hard |
| Jump Game II |
30.6% |
Hard |
| Palindrome Partitioning II |
30.2% |
Hard |
| Shortest Palindrome |
29.8% |
Hard |
| Median of Two Sorted Arrays |
29.6% |
Hard |
| Longest Valid Parentheses |
28.4% |
Hard |
| Count The Repetitions |
28.2% |
Hard |
| Self Crossing |
28.0% |
Hard |
| Best Time to Buy and Sell Stock IV |
28.0% |
Hard |
| Text Justification |
27.7% |
Hard |
| Integer to English Words |
27.1% |
Hard |
| Create Maximum Number |
27.0% |
Hard |
| Regular Expression Matching |
26.8% |
Hard |
| Split Array With Same Average |
26.4% |
Hard |
| Substring with Concatenation of All Words |
25.4% |
Hard |
| Reverse Pairs |
25.2% |
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 |
| Max Points on a Line |
16.9% |
Hard |
| Valid Number |
15.3% |
Hard |
| Strong Password Checker |
14.0% |
Hard |