0001 |
Two Sum |
C++ Python |
Easy |
0002 |
Add Two Numbers |
C++ Python |
Medium |
0003 |
Longest Substring Without Repeating Characters |
C++ Python |
Medium |
0004 |
Median of Two Sorted Arrays |
C++ Python |
Hard |
0005 |
Longest Palindromic Substring |
C++ Python Go |
Medium |
0006 |
Zigzag Conversion |
C++ Java |
Medium |
0007 |
Reverse Integer |
C++ Python |
Medium |
0008 |
String to Integer (atoi) |
C++ |
Medium |
0009 |
Palindrome Number |
C++ |
Easy |
0010 |
Regular Expression Matching |
C++ |
Hard |
0011 |
Container With Most Water |
C++ Python Java |
Medium |
0012 |
Integer to Roman |
C++ |
Medium |
0013 |
Roman to Integer |
C++ |
Easy |
0014 |
Longest Common Prefix |
C++ |
Easy |
0015 |
3Sum |
C++ |
Medium |
0016 |
3Sum Closest |
C++ |
Medium |
0017 |
Letter Combinations of a Phone Number |
C++ Python |
Medium |
0018 |
4Sum |
C++ |
Medium |
0019 |
Remove Nth Node From End of List |
C++ Python |
Medium |
0020 |
Valid Parentheses |
C++ Java |
Easy |
0021 |
Merge Two Sorted Lists |
C++ |
Easy |
0022 |
Generate Parentheses |
C++ |
Medium |
0023 |
Merge k Sorted Lists |
C++ Python |
Hard |
0024 |
Swap Nodes in Pairs |
C++ |
Medium |
0025 |
Reverse Nodes in k-Group |
C++ Python Go |
Hard |
0026 |
Remove Duplicates from Sorted Array |
C++ |
Easy |
0027 |
Remove Element |
C++ |
Easy |
0028 |
Find the Index of the First Occurrence in a String (RK/KMP) |
C++ Python |
Medium |
0029 |
Divide Two Integers |
C++ |
Medium |
0030 |
Substring with Concatenation of All Words |
C++ |
Hard |
0031 |
Next Permutation |
C++ |
Medium |
0032 |
Longest Valid Parentheses |
C++ |
Hard |
0033 |
Search in Rotated Sorted Array |
C++ Python |
Medium |
0034 |
Find First and Last Position of Element in Sorted Array |
C++ Python |
Medium |
0035 |
Search Insert Position |
C++ |
Easy |
0036 |
Valid Sudoku |
C++ |
Medium |
0037 |
Sudoku Solver |
C++ |
Hard |
0038 |
Count and Say |
C++ |
Medium |
0039 |
Combination Sum |
C++ |
Medium |
0040 |
Combination Sum II |
C++ Python |
Medium |
0041 |
First Missing Positive |
C++ Python |
Hard |
0042 |
Trapping Rain Water |
C++ Python |
Hard |
0043 |
Multiply Strings |
C++ |
Medium |
0044 |
Wildcard Matching |
C++ Python |
Hard |
0045 |
Jump Game II |
C++ |
Medium |
0046 |
Permutations |
C++ |
Medium |
0047 |
Permutations II |
C++ |
Medium |
0048 |
Rotate Image |
C++ |
Medium |
0049 |
Group Anagrams |
C++ Python Go |
Medium |
0050 |
Pow(x, n) |
C++ Python |
Medium |
0051 |
N-Queens |
C++ |
Hard |
0052 |
N-Queens II |
C++ |
Hard |
0053 |
Maximum Subarray |
C++ |
Easy |
0054 |
Spiral Matrix |
C++ |
Medium |
0055 |
Jump Game |
C++ |
Medium |
0056 |
Merge Intervals |
C++ Python |
Medium |
0057 |
Insert Interval |
C++ Python |
Medium |
0058 |
Length of Last Word |
C++ Python |
Easy |
0059 |
Spiral Matrix II |
C++ |
Medium |
0060 |
Permutation Sequence |
C++ |
Hard |
0061 |
Rotate List |
C++ |
Medium |
0062 |
Unique Paths |
C++ Python |
Medium |
0063 |
Unique Paths II |
C++ |
Medium |
0064 |
Minimum Path Sum |
C++ |
Medium |
0065 |
Valid Number |
C++ Python |
Hard |
0066 |
Plus One |
C++ |
Easy |
0067 |
Add Binary |
C++ |
Easy |
0068 |
Text Justification |
C++ |
Hard |
0069 |
Sqrt(x) |
C++ Python |
Easy |
0070 |
Climbing Stairs |
C++ Python Go |
Easy |
0071 |
Simplify Path |
C++ Python |
Medium |
0072 |
Edit Distance |
C++ Python |
Medium |
0073 |
Set Matrix Zeroes |
C++ |
Medium |
0074 |
Search a 2D Matrix |
C++ |
Medium |
0075 |
Sort Colors |
C++ Python |
Medium |
0076 |
Minimum Window Substring |
C++ Python |
Hard |
0077 |
Combinations |
C++ |
Medium |
0078 |
Subsets |
C++ Python |
Medium |
0079 |
Word Search |
C++ Python |
Medium |
0080 |
Remove Duplicates from Sorted Array II |
C++ |
Medium |
0081 |
Search in Rotated Sorted Array II |
C++ |
Medium |
0082 |
Remove Duplicates from Sorted List II |
C++ |
Medium |
0083 |
Remove Duplicates from Sorted List |
C++ |
Easy |
0084 |
Largest Rectangle in Histogram |
C++ Python |
Hard |
0085 |
Maximal Rectangle |
C++ Python |
Hard |
0086 |
Partition List |
C++ |
Medium |
0087 |
Scramble String |
C++ |
Hard |
0088 |
Merge Sorted Array |
C++ Python Java Kotlin |
Easy |
0089 |
Gray Code |
C++ |
Medium |
0090 |
Subsets II |
C++ |
Medium |
0091 |
Decode Ways |
C++ Python |
Medium |
0092 |
Reverse Linked List II |
C++ |
Medium |
0093 |
Restore IP Addresses |
C++ |
Medium |
0094 |
Binary Tree Inorder Traversal |
C++ |
Easy |
0095 |
Unique Binary Search Trees II |
C++ |
Medium |
0096 |
Unique Binary Search Trees |
C++ |
Medium |
0097 |
Interleaving String |
C++ |
Medium |
0098 |
Validate Binary Search Tree |
C++ |
Medium |
0099 |
Recover Binary Search Tree |
C++ |
Medium |
0100 |
Same Tree |
C++ Python |
Easy |
0101 |
symmetric-tree |
C++ |
Easy |
0102 |
Binary Tree Level Order Traversal |
C++ |
Medium |
0103 |
Binary Tree Zigzag Level Order Traversal |
C++ |
Medium |
0104 |
Maximum Depth of Binary Tree |
C++ Python Java |
Easy |
0105 |
Construct Binary Tree from Preorder and Inorder Traversal |
C++ |
Medium |
0106 |
Construct Binary Tree from Inorder and Postorder Traversal |
C++ |
Medium |
0107 |
Binary Tree Level Order Traversal II |
C++ |
Medium |
0108 |
Convert Sorted Array to Binary Search Tree |
C++ |
Easy |
0109 |
Convert Sorted List to Binary Search Tree |
C++ |
Medium |
0110 |
Balanced Binary Tree |
C++ |
Easy |
0111 |
Minimum Depth of Binary Tree |
C++ |
Easy |
0112 |
Path Sum |
C++ |
Easy |
0113 |
Path Sum II |
C++ Python |
Medium |
0114 |
Flatten Binary Tree to Linked List |
C++ |
Medium |
0115 |
Distinct Subsequences |
C++ |
Hard |
0116 |
Populating Next Right Pointers in Each Node |
C++ |
Medium |
0117 |
Populating Next Right Pointers in Each Node II |
C++ |
Medium |
0118 |
Pascal's Triangle |
C++ |
Easy |
0119 |
Pascal's Triangle II |
C++ |
Easy |
0120 |
Triangle |
C++ |
Medium |
0121 |
Best Time to Buy and Sell Stock |
C++ Python |
Easy |
0122 |
Best Time to Buy and Sell Stock II |
C++ |
Medium |
0123 |
Best Time to Buy and Sell Stock III |
C++ |
Hard |
0124 |
Binary Tree Maximum Path Sum |
C++ |
Hard |
0125 |
Valid Palindrome |
C++ Python Go |
Easy |
0126 |
Word Ladder II |
C++ |
Hard |
0127 |
Word Ladder |
C++ |
Hard |
0128 |
Longest Consecutive Sequence |
C++ Python |
Medium |
0129 |
Sum Root to Leaf Numbers |
C++ Python |
Medium |
0130 |
Surrounded Regions |
C++ |
Medium |
0131 |
Palindrome Partitioning |
C++ Go |
Medium |
0132 |
Palindrome Partitioning II |
C++ |
Hard |
0133 |
Clone Graph |
C++ |
Medium |
0134 |
Gas Station |
C++ |
Medium |
0135 |
Candy |
C++ |
Hard |
0136 |
Single Number |
C++ Python |
Easy |
0137 |
Single Number II |
C++ |
Medium |
0138 |
Copy List with Random Pointer |
C++ Python |
Medium |
0139 |
Word Break |
C++ |
Medium |
0140 |
Word Break II |
C++ Python |
Hard |
0141 |
Linked List Cycle |
C++ Python |
Easy |
0142 |
Linked List Cycle II |
C++ |
Medium |
0143 |
Reorder List |
C++ Python |
Medium |
0144 |
Binary Tree Preorder Traversal |
C++ |
Easy |
0145 |
Binary Tree Postorder Traversal |
C++ Python |
Easy |
0146 |
LRU Cache |
C++ Python |
Medium |
0147 |
Insertion Sort List |
C++ |
Medium |
0148 |
Sort List |
C++ |
Medium |
0149 |
Max Points on a Line |
C++ |
Hard |
0150 |
Evaluate Reverse Polish Notation |
C++ Python |
Medium |
0151 |
Reverse Words in a String |
C++ Python Java |
Medium |
0152 |
Maximum Product Subarray |
C++ |
Medium |
0153 |
Find Minimum in Rotated Sorted Array |
C++ |
Medium |
0154 |
Find Minimum in Rotated Sorted Array II |
C++ |
Hard |
0155 |
Min Stack |
C++ |
Easy |
0156 |
Binary Tree Upside Down |
C++ |
Medium |
0157 |
Read N Characters Given Read4 |
C++ |
Easy |
0158 |
Read N Characters Given read4 II - Call Multiple Times |
C++ |
Hard |
0159 |
Longest Substring with At Most Two Distinct Characters |
C++ Python |
Medium |
0160 |
Intersection of Two Linked Lists |
C++ |
Easy |
0161 |
One Edit Distance |
C++ |
Medium |
0162 |
Find Peak Element |
C++ Python |
Medium |
0163 |
Missing Ranges |
C++ Python |
Easy |
0164 |
Maximum Gap |
C++ |
Medium |
0165 |
Compare Version Numbers |
C++ Python |
Medium |
0166 |
Fraction to Recurring Decimal |
C++ |
Medium |
0167 |
Two Sum II - Input Array Is Sorted |
C++ |
Medium |
0168 |
Excel Sheet Column Title |
C++ |
Easy |
0169 |
Majority Element |
C++ Python |
Easy |
0170 |
Two Sum III - Data structure design |
C++ |
Easy |
0171 |
Excel Sheet Column Number |
C++ |
Easy |
0172 |
Factorial Trailing Zeroes |
C++ |
Medium |
0173 |
Binary Search Tree Iterator |
C++ |
Medium |
0174 |
Dungeon Game |
C++ |
Hard |
0179 |
Largest Number |
C++ Python |
Medium |
0186 |
Reverse Words in a String II |
C++ |
Medium |
0187 |
Repeated DNA Sequences |
C++ |
Medium |
0188 |
Best Time to Buy and Sell Stock IV |
C++ |
Hard |
0189 |
Rotate Array |
C++ |
Medium |
0190 |
Reverse Bits |
C++ |
Easy |
0191 |
Number of 1 Bits |
C++ |
Easy |
0198 |
House Robber |
C++ Python Go |
Medium |
0199 |
Binary Tree Right Side View |
C++ Python Java |
Medium |
0200 |
Number of Islands |
C++ Python |
Medium |
0201 |
Bitwise AND of Numbers Range |
C++ Python |
Medium |
0202 |
Happy Number |
C++ |
Easy |
0203 |
Remove Linked List Elements |
C++ |
Easy |
0204 |
Count Primes |
C++ |
Medium |
0205 |
Isomorphic Strings |
C++ Python |
Easy |
0206 |
Reverse Linked List |
C++ Go Java |
Easy |
0207 |
Course Schedule |
C++ |
Medium |
0208 |
Implement Trie (Prefix Tree) |
C++ Python Go |
Medium |
0209 |
Minimum Size Subarray Sum |
C++ |
Medium |
0210 |
Course Schedule II |
C++ |
Medium |
0211 |
Design Add and Search Words Data Structure |
C++ |
Medium |
0212 |
Word Search II |
C++ |
Hard |
0213 |
House Robber II |
C++ |
Medium |
0214 |
Shortest Palindrome |
C++ Python |
Hard |
0215 |
Kth Largest Element in an Array |
C++ Python |
Medium |
0216 |
Combination Sum III |
C++ Python |
Medium |
0217 |
Contains Duplicate |
C++ |
Easy |
0218 |
The Skyline Problem |
C++ |
Hard |
0219 |
Contains Duplicate II |
C++ |
Easy |
0220 |
Contains Duplicate III |
C++ |
Hard |
0221 |
Maximal Square |
C++ |
Medium |
0222 |
Count Complete Tree Nodes |
C++ |
Medium |
0223 |
Rectangle Area |
C++ |
Medium |
0224 |
Basic Calculator |
C++ Python |
Hard |
0225 |
Implement Stack using Queues |
C++ |
Easy |
0226 |
Invert Binary Tree |
C++ |
Easy |
0227 |
Basic Calculator II |
C++ Python |
Medium |
0228 |
Summary Ranges |
C++ Java |
Easy |
0229 |
Majority Element II |
C++ |
Medium |
0230 |
Kth Smallest Element in a BST |
C++ |
Medium |
0231 |
Power of Two |
C++ Python |
Easy |
0232 |
Implement Queue using Stacks |
C++ Python |
Easy |
0233 |
Number of Digit One |
C++ |
Hard |
0234 |
Palindrome Linked List |
C++ Python |
Easy |
0235 |
Lowest Common Ancestor of a Binary Search Tree |
C++ |
Easy |
0236 |
Lowest Common Ancestor of a Binary Tree |
C++ Python Java Kotlin |
Medium |
0237 |
Delete Node in a Linked List |
C++ Python |
Medium |
0238 |
Product of Array Except Self |
C++ Python Java |
Medium |
0239 |
Sliding Window Maximum |
C++ |
Hard |
0240 |
Search a 2D Matrix II |
C++ |
Medium |
0241 |
Different Ways to Add Parentheses |
C++ Python |
Medium |
0242 |
Valid Anagram |
C++ |
Easy |
0243 |
Shortest Word Distance |
C++ |
Easy |
0244 |
Shortest Word Distance II |
C++ |
Medium |
0245 |
Shortest Word Distance III |
C++ |
Medium |
0246 |
Strobogrammatic Number |
C++ |
Easy |
0247 |
Strobogrammatic Number II |
C++ |
Medium |
0248 |
Strobogrammatic Number III |
C++ |
Hard |
0249 |
Group Shifted Strings |
C++ |
Medium |
0250 |
Count Univalue Subtrees |
C++ |
Medium |
0251 |
Flatten 2D Vector |
C++ |
Medium |
0252 |
Meeting Rooms |
C++ |
Easy |
0253 |
Meeting Rooms II |
C++ Python |
Medium |
0254 |
Factor Combinations |
C++ |
Medium |
0255 |
Verify Preorder Sequence in Binary Search Tree |
C++ Python |
Medium |
0256 |
Paint House |
C++ Python |
Medium |
0257 |
Binary Tree Paths |
C++ |
Easy |
0258 |
Add Digits |
C++ |
Easy |
0259 |
3Sum Smaller |
C++ |
Medium |
0260 |
Single Number III |
C++ Python |
Medium |
0261 |
Graph Valid Tree |
C++ |
Medium |
0263 |
Ugly Number |
C++ |
Easy |
0264 |
Ugly Number II |
C++ Python |
Medium |
0265 |
Paint House II |
C++ |
Hard |
0266 |
Palindrome Permutation |
C++ |
Easy |
0267 |
Palindrome Permutation II |
C++ |
Medium |
0268 |
Missing Number |
C++ Python |
Easy |
0269 |
Alien Dictionary |
C++ |
Hard |
0270 |
Closest Binary Search Tree Value |
C++ |
Easy |
0271 |
Encode and Decode Strings |
C++ |
Medium |
0272 |
Closest Binary Search Tree Value II |
C++ |
Hard |
0273 |
Integer to English Words |
C++ Python |
Hard |
0274 |
H-Index |
C++ |
Medium |
0275 |
H-Index II |
C++ |
Medium |
0276 |
Paint Fence |
C++ Python |
Medium |
0277 |
Find the Celebrity |
C++ |
Medium |
0278 |
First Bad Version |
C++ |
Easy |
0279 |
Perfect Squares |
C++ Python |
Medium |
0280 |
Wiggle Sort |
C++ |
Medium |
0281 |
Zigzag Iterator |
C++ |
Medium |
0282 |
Expression Add Operators |
C++ |
Hard |
0283 |
Move Zeroes |
C++ Python Java |
Easy |
0284 |
Peeking Iterator |
C++ |
Medium |
0285 |
Inorder Successor in BST |
C++ |
Medium |
0286 |
Walls and Gates |
C++ |
Medium |
0287 |
Find the Duplicate Number |
C++ Python |
Medium |
0288 |
Unique Word Abbreviation |
C++ |
Medium |
0289 |
Game of Life |
C++ |
Medium |
0290 |
Word Pattern |
C++ |
Easy |
0292 |
Nim Game |
C++ |
Easy |
0293 |
Flip Game |
C++ Python |
Easy |
0294 |
Flip Game II |
C++ |
Medium |
0295 |
Find Median from Data Stream |
C++ |
Hard |
0296 |
Best Meeting Point |
C++ |
Hard |
0297 |
Serialize and Deserialize Binary Tree |
C++ |
Medium |
0298 |
Binary Tree Longest Consecutive Sequence |
C++ |
Medium |
0299 |
Bulls and Cows |
C++ |
Medium |
0300 |
Longest Increasing Subsequence |
C++ Python |
Medium |
0301 |
Remove Invalid Parentheses |
C++ |
Hard |
0302 |
Smallest Rectangle Enclosing Black Pixels |
Python |
Hard |
0303 |
Range Sum Query - Immutable |
C++ |
Easy |
0304 |
Range Sum Query 2D - Immutable |
C++ |
Medium |
0305 |
Number of Islands II |
C++ Python |
Hard |
0306 |
Additive Number |
Python |
Medium |
0307 |
Range Sum Query - Mutable |
C++ |
Medium |
0308 |
Range Sum Query 2D - Mutable |
C++ |
Hard |
0309 |
Best Time to Buy and Sell Stock with Cooldown |
C++ |
Medium |
0310 |
Minimum Height Trees |
C++ Python |
Medium |
0311 |
Sparse Matrix Multiplication |
C++ |
Medium |
0312 |
Burst Balloons |
C++ |
Hard |
0313 |
Super Ugly Number |
Python |
Medium |
0314 |
Binary Tree Vertical Order Traversal |
C++ Python Java |
Medium |
0315 |
Count of Smaller Numbers After Self |
C++ |
Hard |
0316 |
Remove Duplicate Letters |
C++ |
Medium |
0317 |
Shortest Distance from All Buildings |
Python |
Hard |
0318 |
Maximum Product of Word Lengths |
C++ |
Medium |
0319 |
Bulb Switcher |
C++ |
Medium |
0322 |
Coin Change |
C++ |
Medium |
0323 |
Number of Connected Components in an Undirected Graph |
C++ |
Medium |
0325 |
Maximum Size Subarray Sum Equals k |
C++ |
Medium |
0326 |
Power of Three |
C++ |
Easy |
0328 |
Odd Even Linked List |
C++ Python Go Java |
Medium |
0329 |
Longest Increasing Path in a Matrix |
C++ Python |
Hard |
0330 |
Patching Array |
Python |
Hard |
0332 |
Reconstruct Itinerary |
C++ |
Hard |
0333 |
Largest BST Subtree |
C++ |
Medium |
0334 |
Increasing Triplet Subsequence |
C++ Python Java |
Medium |
0336 |
Palindrome Pairs |
C++ |
Hard |
0337 |
House Robber III |
C++ |
Medium |
0338 |
Counting Bits |
C++ Python |
Easy |
0339 |
Nested List Weight Sum |
C++ Python |
Medium |
0340 |
Longest Substring with At Most K Distinct Characters |
C++ Python |
Medium |
0341 |
Flatten Nested List Iterator |
C++ |
Medium |
0342 |
Power of Four |
C++ |
Easy |
0343 |
Integer Break |
C++ |
Medium |
0344 |
Reverse String |
C++ Python |
Easy |
0345 |
Reverse Vowels of a String |
C++ Python Java |
Easy |
0346 |
Moving Average from Data Stream |
C++ |
Easy |
0347 |
Top K Frequent Elements |
C++ Python |
Medium |
0348 |
Design Tic-Tac-Toe |
C++ |
Medium |
0349 |
Intersection of Two Arrays |
C++ Python |
Easy |
0350 |
Intersection of Two Arrays II |
C++ Python |
Easy |
0351 |
Android Unlock Patterns |
C++ Python |
Medium |
0354 |
Russian Doll Envelopes |
C++ |
Hard |
0355 |
Design Twitter |
C++ Python |
Medium |
0358 |
Rearrange String k Distance Apart |
C++ |
Hard |
0359 |
Logger Rate Limiter |
C++ |
Easy |
0361 |
Bomb Enemy |
C++ |
Medium |
0362 |
Design Hit Counter |
C++ |
Medium |
0363 |
Max Sum of Rectangle No Larger Than K |
C++ |
Hard |
0365 |
Water and Jug Problem |
C++ |
Medium |
0366 |
Find Leaves of Binary Tree |
C++ |
Medium |
0367 |
Valid Perfect Square |
C++ |
Easy |
0368 |
Largest Divisible Subset |
C++ Python |
Medium |
0369 |
Plus One Linked List |
C++ |
Medium |
0373 |
Find K Pairs with Smallest Sums |
C++ |
Medium |
0374 |
Guess Number Higher or Lower |
C++ Python Go |
Easy |
0376 |
Wiggle Subsequence |
C++ |
Medium |
0377 |
Combination Sum IV |
C++ |
Medium |
0378 |
Kth Smallest Element in a Sorted Matrix |
C++ |
Medium |
0380 |
Insert Delete GetRandom O(1) |
C++ Python Go |
Medium |
0382 |
Linked List Random Node |
C++ |
Medium |
0383 |
Ransom Note |
C++ |
Easy |
0384 |
Shuffle an Array |
C++ |
Medium |
0386 |
Lexicographical Numbers |
C++ Python |
Medium |
0387 |
First Unique Character in a String |
C++ Python |
Easy |
0389 |
Find the Difference |
C++ |
Easy |
0392 |
Is Subsequence |
C++ Python Java |
Easy |
0393 |
UTF-8 Validation |
C++ |
Medium |
0394 |
Decode String |
C++ Python Go Java |
Medium |
0395 |
Longest Substring with At Least K Repeating Characters |
C++ |
Medium |
0398 |
Random Pick Index |
C++ |
Medium |
0399 |
Evaluate Division |
C++ Python Java |
Medium |
0400 |
Nth Digit |
C++ |
Medium |
0402 |
Remove K Digits |
C++ Python |
Medium |
0403 |
Frog Jump |
C++ |
Hard |
0404 |
Sum of Left Leaves |
C++ Python |
Easy |
0405 |
Convert a Number to Hexadecimal |
C++ |
Easy |
0406 |
Queue Reconstruction by Height |
C++ |
Medium |
0407 |
Trapping Rain Water II |
Python Rust |
Hard |
0408 |
Valid Word Abbreviation |
C++ Python |
Easy |
0409 |
Longest Palindrome |
C++ Python Go |
Easy |
0410 |
Split Array Largest Sum |
C++ Python |
Hard |
0412 |
Fizz Buzz |
C++ |
Easy |
0413 |
Arithmetic Slices |
C++ |
Medium |
0414 |
Third Maximum Number |
C++ Python |
Easy |
0415 |
Add Strings |
C++ Python |
Easy |
0416 |
Partition Equal Subset Sum |
C++ |
Medium |
0417 |
Pacific Atlantic Water Flow |
C++ |
Medium |
0418 |
Sentence Screen Fitting |
C++ |
Medium |
0419 |
Battleships in a Board |
C++ |
Medium |
0422 |
Valid Word Square |
C++ |
Easy |
0424 |
Longest Repeating Character Replacement |
C++ |
Medium |
0426 |
Convert Binary Search Tree to Sorted Doubly Linked List |
Python |
Medium |
0427 |
Construct Quad Tree |
C++ |
Medium |
0429 |
N-ary Tree Level Order Traversal |
C++ |
Medium |
0430 |
Flatten a Multilevel Doubly Linked List |
C++ |
Medium |
0433 |
Minimum Genetic Mutation |
C++ |
Medium |
0435 |
Non-overlapping Intervals |
C++ Python |
Medium |
0436 |
Find Right Interval |
C++ |
Medium |
0437 |
Path Sum III |
C++ Python Go Java |
Medium |
0438 |
Find All Anagrams in a String |
C++ |
Medium |
0439 |
Ternary Expression Parser |
C++ |
Medium |
0440 |
K-th Smallest in Lexicographical Order |
Java |
Hard |
0441 |
Arranging Coins |
C++ |
Easy |
0442 |
Find All Duplicates in an Array |
Python |
Medium |
0443 |
String Compression |
C++ Python Java |
Medium |
0444 |
Sequence Reconstruction |
C++ |
Medium |
0445 |
Add Two Numbers II |
C++ |
Medium |
0446 |
Arithmetic Slices II - Subsequence |
C++ Python |
Hard |
0448 |
Find All Numbers Disappeared in an Array |
C++ |
Easy |
0450 |
Delete Node in a BST |
C++ Python Go |
Medium |
0451 |
Sort Characters By Frequency |
C++ Python |
Medium |
0452 |
Minimum Number of Arrows to Burst Balloons |
C++ Python |
Medium |
0454 |
4Sum II |
C++ |
Medium |
0455 |
Assign Cookies |
C++ Python |
Easy |
0456 |
132 Pattern |
C++ |
Medium |
0457 |
Circular Array Loop |
Python |
Medium |
0458 |
Poor Pigs |
C++ |
Hard |
0459 |
Repeated Substring Pattern |
C++ |
Easy |
0460 |
LFU Cache |
C++ |
Hard |
0462 |
Minimum Moves to Equal Array Elements II |
C++ |
Medium |
0463 |
Island Perimeter |
C++ Python |
Easy |
0464 |
Can I Win |
C++ |
Medium |
0465 |
Optimal Account Balancing |
C++ |
Hard |
0468 |
Validate IP Address |
Python |
Medium |
0472 |
Concatenated Words |
C++ |
Hard |
0473 |
Matchsticks to Square |
C++ |
Medium |
0474 |
Ones and Zeroes |
C++ |
Medium |
0476 |
Number Complement |
Python |
Easy |
0484 |
Find Permutation |
C++ |
Medium |
0486 |
Predict the Winner |
C++ |
Medium |
0487 |
Max Consecutive Ones II |
C++ Python |
Medium |
0489 |
Robot Room Cleaner |
C++ |
Hard |
0491 |
Non-decreasing Subsequences |
C++ |
Medium |
0494 |
Target Sum |
C++ Python |
Medium |
0496 |
Next Greater Element I |
C++ |
Easy |
0498 |
Diagonal Traverse |
Python |
Medium |
0501 |
Find Mode in Binary Search Tree |
C++ |
Easy |
0502 |
IPO |
C++ Python |
Hard |
0503 |
Next Greater Element II |
C++ Python |
Medium |
0505 |
The Maze II |
C++ |
Medium |
0506 |
Relative Ranks |
Python |
Easy |
0509 |
Fibonacci Number |
C++ |
Easy |
0510 |
Inorder Successor in BST II |
C++ |
Medium |
0513 |
Find Bottom Left Tree Value |
Python |
Medium |
0514 |
Freedom Trail |
Python |
Hard |
0515 |
Find Largest Value in Each Tree Row |
C++ Python |
Medium |
0516 |
Longest Palindromic Subsequence |
C++ Go |
Medium |
0518 |
Coin Change II |
C++ |
Medium |
0520 |
Detect Capital |
C++ |
Easy |
0522 |
Student Attendance Record II |
C++ Python |
Hard |
0523 |
Continuous Subarray Sum |
C++ Python |
Medium |
0525 |
Contiguous Array |
Python |
Medium |
0527 |
Word Abbreviation |
C++ |
Hard |
0528 |
Random Pick with Weight |
C++ Python |
Medium |
0529 |
Minesweeper |
C++ |
Medium |
0530 |
Minimum Absolute Difference in BST |
C++ Java |
Easy |
0531 |
Lonely Pixel I |
C++ |
Medium |
0535 |
Encode and Decode TinyURL |
C++ |
Medium |
0538 |
Convert BST to Greater Tree |
C++ |
Medium |
0539 |
Minimum Time Difference |
Python |
Medium |
0540 |
Single Element in a Sorted Array |
C++ |
Medium |
0541 |
Reverse String II |
C++ |
Easy |
0542 |
01 Matrix |
C++ |
Medium |
0543 |
Diameter of Binary Tree |
C++ Python |
Easy |
0545 |
Boundary of Binary Tree |
C++ |
Medium |
0546 |
Remove Boxes |
C++ |
Hard |
0547 |
Number of Provinces |
C++ Python Go Java |
Medium |
0549 |
Binary Tree Longest Consecutive Sequence II |
C++ |
Medium |
0556 |
Next Greater Element III |
C++ Python |
Medium |
0557 |
Reverse Words in a String III |
C++ |
Easy |
0560 |
Subarray Sum Equals K |
C++ Python |
Medium |
0562 |
Longest Line of Consecutive One in Matrix |
C++ |
Medium |
0563 |
Binary Tree Tilt |
C++ |
Easy |
0564 |
Find the Closest Palindrome |
Python |
Hard |
0566 |
Reshape the Matrix |
C++ |
Easy |
0567 |
Permutation in String |
C++ Python |
Medium |
0568 |
Maximum Vacation Days |
C++ |
Hard |
0572 |
Subtree of Another Tree |
C++ |
Easy |
0573 |
Squirrel Simulation |
C++ |
Medium |
0576 |
Out of Boundary Paths |
C++ Go |
Medium |
0581 |
Shortest Unsorted Continuous Subarray |
C++ |
Medium |
0582 |
Kill Process |
C++ |
Medium |
0583 |
Delete Operation for Two Strings |
C++ |
Medium |
0587 |
Erect the Fence |
C++ |
Hard |
0588 |
Design In-Memory File System |
C++ |
Hard |
0589 |
N-ary Tree Preorder Traversal |
C++ |
Easy |
0590 |
N-ary Tree Postorder Traversal |
Python |
Easy |
0592 |
Fraction Addition and Subtraction |
Python |
Medium |
0600 |
Non-negative Integers without Consecutive Ones |
C++ |
Hard |
0605 |
Can Place Flowers |
C++ Python Java |
Easy |
0606 |
Construct String from Binary Tree |
C++ |
Easy |
0609 |
Find Duplicate File in System |
C++ |
Medium |
0617 |
Merge Two Binary Trees |
C++ |
Easy |
0621 |
Task Scheduler |
C++ Python |
Medium |
0622 |
Design Circular Queue |
C++ |
Medium |
0623 |
Add One Row to Tree |
C++ Python |
Medium |
0624 |
Maximum Distance in Arrays |
C++ |
Medium |
0629 |
K Inverse Pairs Array |
C++ Python |
Hard |
0630 |
Course Schedule III |
C++ |
Hard |
0632 |
Smallest Range Covering Elements from K Lists |
C++ Python |
Hard |
0633 |
Sum of Square Numbers |
C++ Python |
Medium |
0634 |
Find the Derangement of An Array |
C++ |
Medium |
0636 |
Exclusive Time of Functions |
Python |
Medium |
0637 |
Average of Levels in Binary Tree |
C++ |
Easy |
0641 |
Design Circular Deque |
C++ Python |
Medium |
0642 |
Design Search Autocomplete System |
C++ |
Hard |
0643 |
Maximum Average Subarray I |
C++ Python Go Java |
Easy |
0645 |
Set Mismatch |
C++ Python Go |
Easy |
0646 |
Maximum Length of Pair Chain |
C++ |
Medium |
0647 |
Palindromic Substrings |
C++ Python |
Medium |
0648 |
Replace Words |
Python |
Medium |
0649 |
Dota2 Senate |
C++ Python Go Java |
Medium |
0650 |
2 Keys Keyboard |
C++ Python |
Medium |
0651 |
4 Keys Keyboard |
C++ |
Medium |
0652 |
Find Duplicate Subtrees |
C++ |
Medium |
0653 |
Two Sum IV - Input is a BST |
C++ |
Easy |
0656 |
Coin Path |
C++ |
Hard |
0658 |
Find K Closest Elements |
C++ |
Medium |
0659 |
Split Array into Consecutive Subsequences |
C++ |
Medium |
0661 |
Image Smoother |
C++ |
Easy |
0662 |
Maximum Width of Binary Tree |
C++ |
Medium |
0664 |
Strange Printer |
C++ |
Hard |
0665 |
Non-decreasing Array |
C++ |
Medium |
0666 |
Path Sum IV |
C++ Python |
Medium |
0669 |
Trim a Binary Search Tree |
C++ |
Medium |
0670 |
Maximum Swap |
C++ Python |
Medium |
0673 |
Number of Longest Increasing Subsequence |
C++ |
Medium |
0678 |
Valid Parenthesis String |
C++ Pyehon |
Medium |
0680 |
Valid Palindrome II |
C++ Python |
Easy |
0682 |
Baseball Game |
C++ |
Easy |
0684 |
Redundant Connection |
C++ Python |
Medium |
0688 |
Knight Probability in Chessboard |
C++ |
Hard |
0689 |
Maximum Sum of 3 Non-Overlapping Subarrays |
Python |
Hard |
0691 |
Stickers to Spell Word |
C++ Python |
Hard |
0692 |
Top K Frequent Words |
C++ |
Medium |
0694 |
Number of Distinct Islands |
C++ |
Medium |
0695 |
Max Area of Island |
C++ |
Medium |
0696 |
Count Binary Substrings |
C++ |
Easy |
0698 |
Partition to K Equal Sum Subsets |
C++ |
Medium |
0700 |
Search in a Binary Search Tree |
C++ Python Java |
Easy |
0701 |
Insert into a Binary Search Tree |
C++ |
Medium |
0702 |
Search in a Sorted Array of Unknown Size |
C++ |
Medium |
0703 |
Kth Largest Element in a Stream |
C++ |
Easy |
0704 |
Binary Search |
C++ |
Easy |
0705 |
Design HashSet |
C++ |
Easy |
0706 |
Design HashMap |
C++ |
Easy |
0707 |
Design Linked List |
C++ |
Medium |
0708 |
Insert into a Sorted Circular Linked List |
Python |
Medium |
0709 |
To Lower Case |
C++ |
Easy |
0712 |
Minimum ASCII Delete Sum for Two Strings |
C++ |
Medium |
0713 |
Subarray Product Less Than K |
C++ Python |
Medium |
0714 |
Best Time to Buy and Sell Stock with Transaction Fee |
C++ Python |
Medium |
0715 |
Range Module |
C++ |
Hard |
0716 |
Max Stack |
C++ |
Hard |
0718 |
Maximum Length of Repeated Subarray |
C++ |
Medium |
0719 |
Find K-th Smallest Pair Distance |
C++ |
Hard |
0721 |
Accounts Merge |
C++ |
Medium |
0723 |
Candy Crush |
C++ |
Medium |
0724 |
Find Pivot Index |
C++ Python Java |
Easy |
0725 |
Split Linked List in Parts |
C++ Python |
Medium |
0726 |
Number of Atoms |
Python |
Hard |
0727 |
Minimum Window Subsequence |
C++ |
Hard |
0729 |
My Calendar I |
C++ Java |
Medium |
0732 |
My Calendar III |
C++ |
Hard |
0733 |
Flood Fill |
C++ |
Easy |
0734 |
Sentence Similarity |
C++ |
Easy |
0735 |
Asteroid Collision |
C++ Python Go Java |
Medium |
0739 |
Daily Temperatures |
C++ Python |
Medium |
0740 |
Delete and Earn |
C++ |
Medium |
0741 |
Cherry Pickup |
C++ |
Hard |
0743 |
Network Delay Time |
C++ |
Medium |
0744 |
Find Smallest Letter Greater Than Target |
C++ Java |
Easy |
0745 |
Prefix and Suffix Search |
C++ |
Hard |
0746 |
Min Cost Climbing Stairs |
C++ Python |
Easy |
0750 |
Number Of Corner Rectangles |
C++ |
Medium |
0751 |
IP to CIDR |
C++ |
Medium |
0752 |
Open the Lock |
C++ Python |
Medium |
0759 |
Employee Free Time |
C++ |
Hard |
0760 |
Find Anagram Mappings |
C++ |
Easy |
0763 |
Partition Labels |
C++ |
Medium |
0766 |
Toeplitz Matrix |
C++ |
Easy |
0767 |
Reorganize String |
C++ |
Medium |
0769 |
Max Chunks To Make Sorted |
Python |
Medium |
0770 |
Basic Calculator IV |
Python |
Hard |
0772 |
Basic Calculator III |
C++ Python |
Hard |
0773 |
Sliding Puzzle |
Python |
Hard |
0779 |
K-th Symbol in Grammar |
C++ |
Medium |
0780 |
Reaching Points |
C++ |
Hard |
0783 |
Minimum Distance Between BST Nodes |
C++ |
Easy |
0784 |
Letter Case Permutation |
C++ |
Medium |
0785 |
Is Graph Bipartite? |
C++ |
Medium |
0786 |
K-th Smallest Prime Fraction |
Python |
Medium |
0787 |
Cheapest Flights Within K Stops |
C++ Python |
Medium |
0790 |
Domino and Tromino Tiling |
C++ Python |
Medium |
0791 |
Custom Sort String |
Python |
Medium |
0792 |
Number of Matching Subsequences |
C++ |
Medium |
0796 |
Rotate String |
Python |
Easy |
0797 |
All Paths From Source to Target |
C++ |
Medium |
0800 |
Similar RGB Color |
C++ |
Easy |
0802 |
Find Eventual Safe States |
C++ |
Medium |
0804 |
Unique Morse Code Words |
C++ |
Easy |
0808 |
Soup Servings |
C++ |
Medium |
0814 |
Binary Tree Pruning |
C++ |
Medium |
0815 |
Bus Routes |
C++ |
Hard |
0820 |
Short Encoding of Words |
C++ |
Medium |
0823 |
Binary Trees With Factors |
C++ |
Medium |
0824 |
Goat Latin |
Python |
Easy |
0826 |
Most Profit Assigning Work |
Python |
Medium |
0827 |
Making A Large Island |
C++ Python |
Hard |
0828 |
Count Unique Characters of All Substrings of a Given String |
C++ |
Hard |
0834 |
Sum of Distances in Tree |
C++ Python |
Hard |
0835 |
Image Overlap |
C++ |
Medium |
0837 |
New 21 Game |
C++ |
Medium |
0838 |
Push Dominoes |
C++ |
Medium |
0839 |
Similar String Groups |
C++ |
Hard |
0840 |
Magic Squares In Grid |
Python |
Medium |
0841 |
Keys and Rooms |
C++ Python Go |
Medium |
0843 |
Guess the Word |
C++ |
Hard |
0844 |
Backspace String Compare |
C++ |
Easy |
0846 |
Hand of Straights |
Python |
Medium |
0847 |
Shortest Path Visiting All Nodes |
C++ |
Hard |
0852 |
Peak Index in a Mountain Array |
C++ |
Easy |
0853 |
Car Fleet |
C++ |
Medium |
0856 |
Score of Parentheses |
C++ Python |
Medium |
0857 |
Minimum Cost to Hire K Workers |
Python |
Hard |
0858 |
Mirror Reflection |
C++ |
Medium |
0859 |
Buddy Strings |
C++ |
Easy |
0860 |
Lemonade Change |
Python |
Easy |
0861 |
Score After Flipping Matrix |
Python |
Medium |
0862 |
Shortest Subarray with Sum at Least K |
C++ |
Hard |
0863 |
All Nodes Distance K in Binary Tree |
C++ |
Medium |
0864 |
Shortest Path to Get All Keys |
C++ |
Hard |
0867 |
Transpose Matrix |
C++ Python |
Easy |
0869 |
Reordered Power of 2 |
C++ |
Medium |
0871 |
Minimum Number of Refueling Stops |
C++ |
Hard |
0872 |
Leaf-Similar Trees |
C++ Python Java |
Easy |
0874 |
Walking Robot Simulation |
Python |
Medium |
0875 |
Koko Eating Bananas |
C++ Python |
Medium |
0876 |
Middle of the Linked List |
C++ Python |
Easy |
0877 |
Stone Game |
C++ |
Medium |
0879 |
Profitable Schemes |
C++ |
Hard |
0880 |
Decoded String at Index |
C++ |
Medium |
0881 |
Boats to Save People |
C++ Python |
Medium |
0884 |
Uncommon Words from Two Sentences |
Python Java Kotlin |
Easy |
0885 |
Spiral Matrix III |
Python |
Medium |
0886 |
Possible Bipartition |
C++ |
Medium |
0887 |
Super Egg Drop |
C++ |
Hard |
0890 |
Find and Replace Pattern |
C++ |
Medium |
0894 |
All Possible Full Binary Trees |
C++ |
Medium |
0896 |
Monotonic Array |
C++ |
Easy |
0897 |
Increasing Order Search Tree |
C++ |
Easy |
0899 |
Orderly Queue |
C++ |
Hard |
0901 |
Online Stock Span |
C++ Python Go |
Medium |
0902 |
Numbers At Most N Given Digit Set |
C++ |
Hard |
0904 |
Fruit Into Baskets |
C++ |
Medium |
0905 |
Sort Array By Parity |
C++ |
Easy |
0907 |
Sum of Subarray Minimums |
C++ Python Go |
Medium |
0909 |
Snakes and Ladders |
C++ |
Medium |
0910 |
Smallest Range II |
C++ |
Medium |
0912 |
Sort an Array |
C++ Python |
Medium |
0916 |
Word Subsets |
C++ Python Rust |
Medium |
0918 |
Maximum Sum Circular Subarray |
C++ |
Medium |
0920 |
Number of Music Playlists |
C++ |
Hard |
0921 |
Minimum Add to Make Parentheses Valid |
C++ Python |
Medium |
0923 |
3Sum With Multiplicity |
C++ |
Medium |
0926 |
Flip String to Monotone Increasing |
C++ |
Medium |
0930 |
Binary Subarrays With Sum |
Python |
Medium |
0931 |
Minimum Falling Path Sum |
C++ Python Go |
Medium |
0933 |
Number of Recent Calls |
C++ Python Java |
Easy |
0934 |
Shortest Bridge |
C++ |
Medium |
0935 |
Knight Dialer |
C++ |
Medium |
0936 |
Stamping The Sequence |
C++ |
Hard |
0937 |
Reorder Data in Log Files |
C++ |
Medium |
0938 |
Range Sum of BST |
C++ Python |
Easy |
0939 |
Minimum Area Rectangle |
Python |
Medium |
0944 |
Delete Columns to Make Sorted |
C++ |
Easy |
0945 |
Minimum Increment to Make Array Unique |
Python |
Medium |
0946 |
Validate Stack Sequences |
C++ |
Medium |
0947 |
Most Stones Removed with Same Row or Column |
C++ Python |
Medium |
0948 |
Bag of Tokens |
C++ Python |
Medium |
0950 |
Reveal Cards In Increasing Order |
Python |
Medium |
0951 |
Flip Equivalent Binary Trees |
Python |
Medium |
0953 |
Verifying an Alien Dictionary |
C++ |
Easy |
0956 |
Tallest Billboard |
C++ |
Hard |
0958 |
Check Completeness of a Binary Tree |
C++ |
Medium |
0959 |
Regions Cut By Slashes |
Python |
Medium |
0961 |
N-Repeated Element in Size 2N Array |
C++ |
Easy |
0962 |
Maximum Width Ramp |
Python |
Medium |
0967 |
Numbers With Same Consecutive Differences |
C++ |
Medium |
0968 |
Binary Tree Cameras |
C++ |
Hard |
0973 |
K Closest Points to Origin |
C++ Python Java Kotlin |
Medium |
0974 |
Subarray Sums Divisible by K |
C++ Python |
Medium |
0976 |
Largest Perimeter Triangle |
C++ |
Easy |
0977 |
Squares of a Sorted Array |
C++ Python |
Easy |
0979 |
Distribute Coins in Binary Tree |
Python |
Medium |
0980 |
Unique Paths III |
C++ |
Hard |
0981 |
Time Based Key-Value Store |
C++ |
Medium |
0983 |
Minimum Cost For Tickets |
C++ Python |
Medium |
0985 |
Sum of Even Numbers After Queries |
C++ |
Medium |
0986 |
Interval List Intersections |
C++ |
Medium |
0987 |
Vertical Order Traversal of a Binary Tree |
C++ |
Hard |
0988 |
Smallest String Starting From Leaf |
Python |
Medium |
0989 |
Add to Array-Form of Integer |
C++ |
Easy |
0990 |
Satisfiability of Equality Equations |
C++ |
Medium |
0992 |
Subarrays with K Different Integers |
C++ Python |
Hard |
0994 |
Rotting Oranges |
C++ Python |
Medium |
0995 |
Minimum Number of K Consecutive Bit Flips |
C++ Python |
Hard |
0997 |
Find the Town Judge |
C++ Python |
Easy |
1002 |
Find Common Characters |
Python |
Easy |
1004 |
Max Consecutive Ones III |
C++ Python Go Java |
Medium |
1008 |
Construct Binary Search Tree from Preorder Traversal |
C++ |
Medium |
1010 |
Pairs of Songs With Total Durations Divisible by 60 |
C++ Python |
Medium |
1011 |
Capacity To Ship Packages Within D Days |
C++ |
Medium |
1012 |
Numbers With Repeated Digits |
C++ |
Hard |
1014 |
Best Sightseeing Pair |
C++ Python |
Medium |
1020 |
Number of Enclaves |
C++ |
Medium |
1026 |
Maximum Difference Between Node and Ancestor |
C++ Python |
Medium |
1027 |
Longest Arithmetic Subsequence |
C++ |
Medium |
1029 |
Two City Scheduling |
C++ |
Medium |
1035 |
Uncrossed Lines |
C++ |
Medium |
1038 |
Binary Search Tree to Greater Sum Tree |
Python |
Medium |
1043 |
Partition Array for Maximum Sum |
C++ Python |
Medium |
1044 |
Longest Duplicate Substring |
C++ |
Hard |
1045 |
Customers Who Bought All Products |
SQL |
Medium |
1046 |
Last Stone Weight |
C++ |
Easy |
1047 |
Remove All Adjacent Duplicates In String |
C++ |
Easy |
1048 |
Longest String Chain |
C++ |
Medium |
1049 |
Last Stone Weight II |
C++ |
Medium |
1051 |
Height Checker |
Python |
Easy |
1052 |
Grumpy Bookstore Owner |
Python |
Medium |
1055 |
Shortest Way to Form String |
C++ |
Medium |
1056 |
Confusing Number |
C++ |
Easy |
1057 |
Campus Bikes |
C++ |
Medium |
1059 |
All Paths from Source Lead to Destination |
C++ |
Medium |
1060 |
Missing Element in Sorted Array |
C++ |
Medium |
1061 |
Lexicographically Smallest Equivalent String |
C++ |
Medium |
1062 |
Longest Repeating Substring |
C++ |
Medium |
1065 |
Index Pairs of a String |
C++ |
Easy |
1066 |
Campus Bikes II |
C++ Python |
Medium |
1067 |
Digit Count in Range |
C++ |
Hard |
1068 |
Product Sales Analysis I |
SQL |
Easy |
1069 |
Product Sales Analysis II |
SQL |
Easy |
1070 |
Product Sales Analysis III |
SQL |
Medium |
1071 |
Greatest Common Divisor of Strings |
C++ Python Java |
Easy |
1072 |
Flip Columns For Maximum Number of Equal Rows |
Python |
Medium |
1073 |
Adding Two Negabinary Numbers |
C++ |
Medium |
1074 |
Number of Submatrices That Sum to Target |
C++ Python |
Hard |
1087 |
Brace Expansion |
C++ |
Medium |
1091 |
Shortest Path in Binary Matrix |
C++ Python |
Medium |
1092 |
Shortest Common Supersequence |
C++ |
Hard |
1095 |
Find in Mountain Array |
C++ |
Hard |
1099 |
Two Sum Less Than K |
C++ Python |
Easy |
1101 |
The Earliest Moment When Everyone Become Friends |
C++ |
Medium |
1105 |
Filling Bookcase Shelves |
Python |
Medium |
1106 |
Parsing A Boolean Expression |
Python |
Hard |
1110 |
Delete Nodes And Return Forest |
Python |
Medium |
1119 |
Remove Vowels from a String |
Python |
Easy |
1120 |
Maximum Average Subtree |
C++ |
Medium |
1122 |
Relative Sort Array |
Python |
Easy |
1125 |
Smallest Sufficient Team |
C++ |
Hard |
1129 |
Shortest Path with Alternating Colors |
C++ |
Medium |
1130 |
Minimum Cost Tree From Leaf Values |
C++ |
Medium |
1137 |
N-th Tribonacci Number |
C++ Python Go |
Easy |
1136 |
Parallel Courses |
C++ |
Medium |
1140 |
Stone Game II |
C++ Python |
Medium |
1143 |
Longest Common Subsequence |
C++ Python |
Medium |
1146 |
Snapshot Array |
C++ Java |
Medium |
1150 |
Check If a Number Is Majority Element in a Sorted Array |
C++ Java |
Easy |
1151 |
Minimum Swaps to Group All 1's Together |
C++ |
Medium |
1152 |
Analyze User Website Visit Pattern |
C++ |
Medium |
1155 |
Number of Dice Rolls With Target Sum |
C++ |
Medium |
1160 |
Find Words That Can Be Formed by Characters |
C++ Python |
Easy |
1161 |
Maximum Level Sum of a Binary Tree |
C++ Python Go Java |
Medium |
1162 |
As Far from Land as Possible |
C++ |
Medium |
1165 |
Single-Row Keyboard |
C++ Python Go |
Easy |
1166 |
Design File System |
C++ |
Medium |
1167 |
Minimum Cost to Connect Sticks |
C++ Python |
Medium |
1171 |
Remove Zero Sum Consecutive Nodes from Linked List |
Python |
Medium |
1182 |
Shortest Distance to Target Color |
C++ |
Medium |
1183 |
Maximum Number of Ones |
C++ |
Hard |
1187 |
Make Array Strictly Increasing |
C++ |
Hard |
1190 |
Reverse Substrings Between Each Pair of Parentheses |
Python |
Medium |
1192 |
Critical Connections in a Netork |
C++ |
Hard |
1197 |
Minimum Knight Moves |
C++ |
Medium |
1198 |
Find Smallest Common Element in All Rows |
C++ |
Medium |
1199 |
Minimum Time to Build Blocks |
C++ |
Hard |
1202 |
Smallest String With Swaps |
C++ |
Medium |
1203 |
Sort Items by Groups Respecting Dependencies |
C++ |
Hard |
1207 |
Unique Number of Occurrences |
C++ Python Go Java |
Easy |
1208 |
Get Equal Substrings Within Budget |
Python |
Medium |
1209 |
Remove All Adjacent Duplicates in String II |
C++ |
Medium |
1214 |
Two Sum BSTs |
C++ |
Medium |
1216 |
Valid Palindrome III |
C++ Python |
Hard |
1217 |
Minimum Cost to Move Chips to The Same Position |
C++ |
Easy |
1218 |
Longest Arithmetic Subsequence of Given Difference |
C++ |
Medium |
1219 |
Path with Maximum Gold |
Python |
Medium |
1220 |
Count Vowels Permutation |
C++ |
Hard |
1229 |
Meeting Scheduler |
C++ |
Medium |
1230 |
Toss Strange Coins |
C++ |
Medium |
1231 |
Divide Chocolate |
C++ |
Hard |
1232 |
Check If It Is a Straight Line |
C++ Java |
Easy |
1233 |
Remove Sub-Folders from the Filesystem |
C++ Python |
Medium |
1235 |
Maximum Profit in Job Scheduling |
C++ Python |
Hard |
1236 |
Web Crawler |
C++ |
Medium |
1237 |
Find Positive Integer Solution for a Given Equation |
C++ |
Medium |
1238 |
Circular Permutation in Binary Representation |
C++ |
Medium |
1239 |
Maximum Length of a Concatenated String with Unique Characters |
C++ Go |
Medium |
1243 |
Array Transformation |
C++ |
Easy |
1244 |
Design A Leaderboard |
C++ |
Medium |
1245 |
Tree Diameter |
C++ Python |
Medium |
1246 |
Palindrome Removal |
C++ |
Hard |
1247 |
Minimum Swaps to Make Strings Equal |
C++ |
Medium |
1248 |
Count Number of Nice Subarrays |
C++ Python |
Medium |
1249 |
Minimum Remove to Make Valid Parentheses |
C++ Python |
Medium |
1250 |
Check If It Is a Good Array |
C++ |
Hard |
1254 |
Number of Closed Islands |
C++ |
Medium |
1255 |
Maximum Score Words Formed by Letters |
Python |
Hard |
1259 |
Handshakes That Don't Cross |
C++ |
Hard |
1260 |
Shift 2D Grid |
C++ |
Easy |
1266 |
Minimum Time Visiting All Points |
C++ Python |
Easy |
1268 |
Search Suggestions System |
C++ Python |
Medium |
1269 |
Number of Ways to Stay in the Same Place After Some Steps |
C++ |
Hard |
1272 |
Remove Interval |
C++ Python |
Medium |
1273 |
Delete Tree Nodes |
C++ |
Medium |
1277 |
Count Square Submatrices with All Ones |
Python |
Medium |
1281 |
Subtract the Product and Sum of Digits of an Integer |
C++ |
Easy |
1282 |
Group the People Given the Group Size They Belong To |
C++ |
Medium |
1283 |
Find the Smallest Divisor Given a Threshold |
C++ |
Medium |
1287 |
Element Appearing More Than 25% In Sorted Array |
C++ |
Easy |
1289 |
Minimum Falling Path Sum II |
Python |
Hard |
1290 |
Convert Binary Number in a Linked List to Integer |
C++ |
Easy |
1291 |
Sequential Digits |
Python |
Medium |
1293 |
Shortest Path in a Grid with Obstacles Elimination |
C++ |
Hard |
1302 |
Deepest Leaves Sum |
C++ |
Medium |
1306 |
Jump Game III |
C++ |
Medium |
1309 |
Decrypt String from Alphabet to Integer Mapping |
C++ |
Easy |
1310 |
XOR Queries of a Subarray |
Python |
Medium |
1312 |
Minimum Insertion Steps to Make a String Palindrome |
C++ |
Hard |
1314 |
Matrix Block Sum |
C++ |
Medium |
1318 |
Minimum Flips to Make a OR b Equal to c |
C++ Python Java |
Medium |
1319 |
Number of Operations to Make Network Connected |
C++ |
Medium |
1323 |
Maximum 69 Number |
C++ |
Easy |
1325 |
Delete Leaves With a Given Value |
C++ Python |
Medium |
1326 |
Minimum Number of Taps to Open to Water a Garden |
C++ |
Hard |
1328 |
Break a Palindrome |
C++ |
Medium |
1329 |
Sort the Matrix Diagonally |
C++ |
Medium |
1331 |
Rank Transform of an Array |
Python |
Easy |
1332 |
Remove Palindromic Subsequences |
C++ |
Easy |
1334 |
Find the City With the Smallest Number of Neighbors at a Threshold Distance |
Python |
Medium |
1335 |
Minimum Difficulty of a Job Schedule |
C++ Python |
Hard |
1337 |
The K Weakest Rows in a Matrix |
C++ |
Easy |
1338 |
Reduce Array Size to The Half |
C++ |
Medium |
1339 |
Maximum Product of Splitted Binary Tree |
C++ |
Medium |
1342 |
Number of Steps to Reduce a Number to Zero |
C++ |
Easy |
1345 |
Jump Game IV |
C++ |
Hard |
1346 |
Check If N and Its Double Exist |
C++ Python |
Easy |
1347 |
Minimum Number of Steps to Make Two Strings Anagram |
C++ Python Go |
Medium |
1351 |
Count Negative Numbers in a Sorted Matrix |
C++ Java |
Easy |
1354 |
Construct Target Array With Multiple Sums |
C++ |
Hard |
1356 |
Sort Integers by The Number of 1 Bits |
C++ |
Easy |
1359 |
Count All Valid Pickup and Delivery Options |
C++ |
Hard |
1361 |
Validate Binary Tree Nodes |
C++ |
Medium |
1366 |
Rank Teams by Votes |
C++ |
Medium |
1367 |
Linked List in Binary Tree |
Python |
Medium |
1368 |
Minimum Cost to Make at Least One Valid Path in a Grid |
C++ Python Rust |
Hard |
1371 |
Find the Longest Substring Containing Vowels in Even Counts |
Python |
Medium |
1372 |
Longest ZigZag Path in a Binary Tree |
C++ Go Java |
Medium |
1376 |
Time Needed to Inform All Employees |
C++ Java |
Medium |
1379 |
Find a Corresponding Node of a Binary Tree in a Clone of That Tree |
C++ |
Medium |
1380 |
Lucky Numbers in a Matrix |
C++ Python |
Easy |
1381 |
Design a Stack With Increment Operation |
Python |
Medium |
1382 |
Balance a Binary Search Tree |
Python |
Medium |
1383 |
Maximum Performance of a Team |
C++ |
Hard |
1385 |
Find the Distance Value Between Two Arrays |
C++ |
Easy |
1396 |
Design Underground System |
C++ |
Medium |
1402 |
Reducing Dishes |
C++ |
Hard |
1404 |
Number of Steps to Reduce a Number in Binary Representation to One |
Python |
Medium |
1405 |
Longest Happy String |
Python |
Medium |
1406 |
Stone Game III |
C++ |
Hard |
1408 |
String Matching in an Array |
Python |
Easy |
1416 |
Restore The Array |
C++ |
Hard |
1420 |
Build Array Where You Can Find The Maximum Exactly K Comparisons |
C++ |
Hard |
1422 |
Maximum Score After Splitting a String |
C++ Python |
Easy |
1423 |
Maximum Points You Can Obtain from Cards |
C++ |
Medium |
1425 |
Constrained Subsequence Sum |
C++ |
Hard |
1427 |
Perform String Shifts |
C++ |
Easy |
1428 |
Leftmost Column with at Least a One |
C++ Python |
Medium |
1431 |
Kids With the Greatest Number of Candies |
C++ Python Java |
Easy |
1434 |
Number of Ways to Wear Different Hats to Each Other |
C++ |
Hard |
1436 |
Destination City |
C++ |
Easy |
1438 |
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit |
C++ Python |
Medium |
1440 |
Construct K Palindrome Strings |
Python |
Medium |
1441 |
Build an Array With Stack Operations |
C++ |
Medium |
1442 |
Count Triplets That Can Form Two Arrays of Equal XOR |
Python |
Medium |
1443 |
Minimum Time to Collect All Apples in a Tree |
C++ |
Medium |
1444 |
Number of Ways of Cutting a Pizza |
C++ Python |
Hard |
1446 |
Consecutive Characters |
C++ |
Easy |
1448 |
Count Good Nodes in Binary Tree |
C++ Python Go Java |
Medium |
1455 |
Check If a Word Occurs As a Prefix of Any Word in a Sentence |
Python |
Easy |
1456 |
Maximum Number of Vowels in a Substring of Given Length |
C++ Python Java |
Medium |
1457 |
Pseudo-Palindromic Paths in a Binary Tree |
C++ Python |
Medium |
1458 |
Max Dot Product of Two Subsequences |
C++ |
Hard |
1460 |
Make Two Arrays Equal by Reversing Subarrays |
Python |
Easy |
1461 |
Check If a String Contains All Binary Codes of Size K |
C++ |
Medium |
1463 |
Cherry Pickup II |
C++ Python |
Hard |
1464 |
Maximum Product of Two Elements in an Array |
C++ |
Easy |
1465 |
Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts |
C++ |
Medium |
1466 |
Reorder Routes to Make All Paths Lead to the City Zero |
C++ Python |
Medium |
1469 |
Find All The Lonely Nodes |
C++ Python |
Easy |
1470 |
Shuffle the Array |
C++ |
Easy |
1472 |
Design Browser History |
C++ |
Medium |
1473 |
Paint House III |
C++ |
Hard |
1475 |
Final Prices With a Special Discount in a Shop |
Python |
Easy |
1478 |
Allocate Mailboxes |
C++ |
Hard |
1480 |
Running Sum of 1d Array |
C++ |
Easy |
1481 |
Least Number of Unique Integers after K Removals |
Python |
Medium |
1482 |
Minimum Number of Days to Make m Bouquets |
Python |
Medium |
1485 |
Clone Binary Tree With Random Pointer |
C++ |
Medium |
1489 |
Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree |
C++ |
Hard |
1491 |
Average Salary Excluding the Minimum and Maximum Salary |
C++ |
Easy |
1493 |
Longest Subarray of 1's After Deleting One Element |
C++ Python Go Java |
Medium |
1496 |
Path Crossing |
C++ |
Easy |
1497 |
Check If Array Pairs Are Divisible by k |
Python Java |
Medium |
1498 |
Number of Subsequences That Satisfy the Given Sum Condition |
C++ |
Medium |
1502 |
Can Make Arithmetic Progression From Sequence |
C++ Java |
Easy |
1503 |
Last Moment Before All Ants Fall Out of a Plank |
C++ |
Medium |
1508 |
Range Sum of Sorted Subarray Sums |
Python |
Medium |
1509 |
Minimum Difference Between Largest and Smallest Value in Three Moves |
Python |
Medium |
1510 |
Stone Game IV |
C++ |
Hard |
1512 |
Number of Good Pairs |
C++ |
Easy |
1514 |
Path with Maximum Probability |
C++ Python |
Medium |
1518 |
Water Bottles |
Python |
Easy |
1519 |
Number of Nodes in the Sub-Tree With the Same Label |
C++ |
Medium |
1522 |
Diameter of N-Ary Tree |
C++ |
Medium |
1523 |
Count Odd Numbers in an Interval Range |
C++ |
Easy |
1530 |
Number of Good Leaf Nodes Pairs |
Python |
Medium |
1531 |
String Compression II |
C++ |
Hard |
1533 |
Find the Index of the Large Integer |
C++ |
Medium |
1535 |
Find the Winner of an Array Game |
C++ |
Medium |
1538 |
Guess the Majority in a Hidden Array |
C++ |
Medium |
1539 |
Kth Missing Positive Number |
C++ |
Medium |
1544 |
Make The String Great |
C++ Python |
Easy |
1545 |
Find Kth Bit in Nth Binary String |
Python |
Medium |
1547 |
Minimum Cost to Cut a Stick |
C++ |
Hard |
1548 |
The Most Similar Path in a Graph |
C++ |
Hard |
1550 |
Three Consecutive Odds |
Python |
Easy |
1552 |
Magnetic Force Between Two Balls |
C++ Python |
Medium |
1557 |
Minimum Number of Vertices to Reach All Nodes |
C++ |
Medium |
1561 |
Maximum Number of Coins You Can Get |
C++ |
Medium |
1564 |
Put Boxes Into the Warehouse I |
C++ |
Medium |
1567 |
Maximum Length of Subarray With Positive Product |
C++ |
Medium |
1568 |
Minimum Number of Days to Disconnect Island |
Python |
Hard |
1569 |
Number of Ways to Reorder Array to Get Same BST |
C++ |
Hard |
1570 |
Dot Product of Two Sparse Vectors |
C++ Python |
Medium |
1572 |
Matrix Diagonal Sum |
C++ |
Easy |
1574 |
Shortest Subarray to be Removed to Make Array Sorted |
Python |
Medium |
1575 |
Count All Possible Routes |
C++ |
Hard |
1578 |
Minimum Time to Make Rope Colorful |
C++ |
Medium |
1579 |
Remove Max Number of Edges to Keep Graph Fully Traversable |
C++ Python |
Hard |
1582 |
Special Positions in a Binary Matrix |
C++ |
Easy |
1584 |
Min Cost to Connect All Points |
C++ |
Medium |
1586 |
Binary Search Tree Iterator II |
C++ |
Medium |
1588 |
Sum of All Odd Length Subarrays |
C++ |
Easy |
1590 |
Make Sum Divisible by P |
Python |
Medium |
1591 |
Strange Printer II |
C++ |
Hard |
1593 |
Split a String Into the Max Number of Unique Substrings |
Python |
Medium |
1597 |
Build Binary Expression Tree From Infix Expression |
C++ |
Hard |
1598 |
Crawler Log Folder |
Python |
Easy |
1601 |
Maximum Number of Achievable Transfer Requests |
C++ |
Hard |
1602 |
Find Nearest Right Node in Binary Tree |
C++ |
Medium |
1603 |
Design Parking System |
C++ |
Easy |
1605 |
Find Valid Matrix Given Row and Column Sums |
Python |
Medium |
1606 |
Find Servers That Handled Most Number of Requests |
C++ |
Hard |
1608 |
Special Array With X Elements Greater Than or Equal X |
C++ Python |
Easy |
1609 |
Even Odd Tree |
Python |
Medium |
1611 |
Minimum One Bit Operations to Make Integers Zero |
C++ Python |
Hard |
1614 |
Maximum Nesting Depth of the Parentheses |
Python |
Easy |
1615 |
Maximal Network Rank |
C++ |
Medium |
1624 |
Largest Substring Between Two Equal Characters |
C++ Python |
Easy |
1626 |
Best Team With No Conflicts |
C++ |
Medium |
1628 |
Design an Expression Tree With Evaluate Function |
C++ |
Medium |
1630 |
Arithmetic Subarrays |
C++ |
Medium |
1631 |
Path With Minimum Effort |
C++ |
Medium |
1634 |
Add Two Polynomials Represented as Linked Lists |
C++ |
Medium |
1636 |
Sort Array by Increasing Frequency |
Python |
Easy |
1637 |
Widest Vertical Area Between Two Points Containing No Points |
C++ |
Medium |
1639 |
Number of Ways to Form a Target String Given a Dictionary |
C++ |
Hard |
1641 |
Count Sorted Vowel Strings |
C++ |
Medium |
1642 |
Furthest Building You Can Reach |
C++ Python |
Medium |
1644 |
Lowest Common Ancestor of a Binary Tree II |
C++ Python |
Medium |
1647 |
Minimum Deletions to Make Character Frequencies Unique |
C++ |
Medium |
1648 |
Sell Diminishing-Valued Colored Balls |
C++ |
Medium |
1650 |
Lowest Common Ancestor of a Binary Tree III |
Python |
Medium |
1652 |
Defuse the Bomb |
Python |
Easy |
1653 |
Minimum Deletions to Make String Balanced |
Python |
Medium |
1654 |
Minimum Jumps to Reach Home |
C++ |
Medium |
1657 |
Determine if Two Strings Are Close |
C++ Python Go Java |
Medium |
1658 |
Minimum Operations to Reduce X to Zero |
C++ |
Medium |
1660 |
Correct a Binary Tree |
C++ |
Medium |
1662 |
Check If Two String Arrays are Equivalent |
C++ Python |
Easy |
1669 |
Merge In Between Linked Lists |
Python |
Medium |
1671 |
Minimum Number of Removals to Make Mountain Array |
Python |
Hard |
1672 |
Richest Customer Wealth |
C++ |
Easy |
1675 |
Minimize Deviation in Array |
C++ |
Hard |
1678 |
Goal Parser Interpretation |
C++ |
Easy |
1679 |
Max Number of K-Sum Pairs |
C++ Python Go Java |
Medium |
1680 |
Concatenation of Consecutive Binary Numbers |
C++ |
Medium |
1682 |
Longest Palindromic Subsequence II |
C++ |
Medium |
1684 |
Count the Number of Consistent Strings |
Python |
Easy |
1685 |
Sum of Absolute Differences in a Sorted Array |
C++ |
Medium |
1689 |
Partitioning Into Minimum Number Of Deci-Binary Numbers |
C++ |
Medium |
1688 |
Count of Matches in Tournament |
C++ Python |
Easy |
1692 |
Count Ways to Distribute Candies |
C++ |
Hard |
1695 |
Maximum Erasure Value |
C++ |
Medium |
1696 |
Jump Game VI |
C++ |
Medium |
1697 |
Checking Existence of Edge Length Limited Paths |
C++ |
Hard |
1698 |
Number of Distinct Substrings in a String |
C++ |
Medium |
1700 |
Number of Students Unable to Eat Lunch |
Python |
Easy |
1701 |
Average Waiting Time |
Python |
Medium |
1704 |
Determine if String Halves Are Alike |
C++ Python Go |
Easy |
1706 |
Where Will the Ball Fall |
C++ |
Medium |
1710 |
Maximum Units on a Truck |
C++ |
Easy |
1716 |
Calculate Money in Leetcode Bank |
C++ |
Easy |
1717 |
Maximum Score From Removing Substrings |
Python |
Medium |
1721 |
Swapping Nodes in a Linked List |
C++ |
Medium |
1727 |
Largest Submatrix With Rearrangements |
C++ |
Medium |
1730 |
Shortest Path to Get Food |
C++ |
Medium |
1732 |
Find the Highest Altitude |
C++ Python Java |
Easy |
1733 |
Minimum Number of People to Teach |
C++ Python |
Medium |
1743 |
Restore the Array From Adjacent Pairs |
C++ |
Medium |
1746 |
Maximum Subarray Sum After One Operation |
C++ |
Medium |
1750 |
Minimum Length of String After Deleting Similar Ends |
Python |
Medium |
1751 |
Maximum Number of Events That Can Be Attended II |
C++ |
Hard |
1756 |
Design Most Recently Used Queue |
C++ |
Medium |
1757 |
Recyclable and Low Fat Products |
SQL |
Easy |
1758 |
Minimum Changes To Make Alternating Binary String |
C++ |
Easy |
1759 |
Count Number of Homogenous Substrings |
C++ |
Medium |
1760 |
Minimum Limit of Balls in a Bag |
C++ Python |
Medium |
1762 |
Buildings With an Ocean View |
Python |
Medium |
1768 |
Merge Strings Alternately |
C++ Python Java |
Easy |
1769 |
Minimum Number of Operations to Move All Balls to Each Box |
Python |
Medium |
1770 |
Maximum Score from Performing Multiplication Operations |
C++ Python |
Medium |
1779 |
Find Nearest Point That Has the Same X or Y Coordinate |
C++ |
Easy |
1790 |
Check if One String Swap Can Make Strings Equal |
C++ |
Easy |
1791 |
Find Center of Star Graph |
Python |
Easy |
1792 |
Maximum Average Pass Ratio |
Python |
Medium |
1793 |
Maximum Score of a Good Subarray |
C++ |
Hard |
1799 |
Maximize Score After N Operations |
C++ |
Hard |
1802 |
Maximum Value at a Given Index in a Bounded Array |
C++ Java |
Medium |
1804 |
Implement Trie II (Prefix Tree) |
C++ |
Medium |
1813 |
Sentence Similarity III |
Python |
Medium |
1814 |
Count Nice Pairs in an Array |
C++ |
Medium |
1822 |
Sign of the Product of an Array |
C++ |
Easy |
1823 |
Find the Winner of the Circular Game |
C++ Python |
Medium |
1829 |
Maximum XOR for Each Query |
Python |
Medium |
1832 |
Check if the Sentence Is Pangram |
C++ |
Easy |
1833 |
Maximum Ice Cream Bars |
C++ |
Medium |
1834 |
Single-Threaded CPU |
C++ |
Medium |
1838 |
Frequency of the Most Frequent Element |
C++ |
Medium |
1845 |
Seat Reservation Manager |
C++ |
Medium |
1846 |
Maximum Element After Decreasing and Rearranging |
C++ |
Medium |
1855 |
Maximum Distance Between a Pair of Values |
C++ |
Medium |
1857 |
Largest Color Value in a Directed Graph |
C++ |
Hard |
1858 |
Longest Word With All Prefixes |
C++ |
Medium |
1861 |
Rotating the Box |
Python |
Medium |
1868 |
Product of Two Run-Length Encoded Arrays |
C++ Python |
Medium |
1863 |
Sum of All Subset XOR Totals |
Python |
Easy |
1870 |
Minimum Speed to Arrive on Time |
C++ |
Medium |
1874 |
Minimize Product Sum of Two Arrays |
C++ |
Medium |
1877 |
Minimize Maximum Pair Sum in Array |
C++ |
Medium |
1884 |
Egg Drop With 2 Eggs and N Floors |
C++ |
Medium |
1885 |
Count Pairs in Two Arrays |
Python |
Medium |
1887 |
Reduction Operations to Make the Array Elements Equal |
C++ |
Medium |
1894 |
Find the Student that Will Replace the Chalk |
Python |
Medium |
1895 |
Largest Magic Square |
C++ |
Medium |
1897 |
Redistribute Characters to Make All Strings Equal |
C++ |
Easy |
1901 |
Find a Peak Element II |
C++ |
Medium |
1903 |
Largest Odd Number in String |
C++ Python |
Easy |
1905 |
Count Sub Islands |
C++ Python |
Medium |
1908 |
Game of Nim |
C++ |
Medium |
1913 |
Maximum Product Difference Between Two Pairs |
C++ |
Easy |
1915 |
Number of Wonderful Substrings |
Python |
Medium |
1921 |
Eliminate Maximum Number of Monsters |
C++ |
Medium |
1926 |
Nearest Exit from Entrance in Maze |
C++ Python |
Medium |
1930 |
Unique Length-3 Palindromic Subsequences |
C++ Python |
Medium |
1937 |
Maximum Number of Points with Cost |
Python |
Medium |
1942 |
The Number of the Smallest Unoccupied Chair |
Python |
Medium |
1945 |
Sum of Digits of String After Convert |
Python |
Easy |
1957 |
Delete Characters to Make Fancy String |
Python |
Easy |
1962 |
Remove Stones to Minimize the Total |
C++ |
Medium |
1963 |
Minimum Number of Swaps to Make the String Balanced |
Python |
Medium |
1964 |
Find the Longest Valid Obstacle Course at Each Position |
C++ |
Hard |
1970 |
Last Day Where You Can Still Cross |
C++ |
Hard |
1971 |
Find if Path Exists in Graph |
C++ Python |
Easy |
1973 |
Count Nodes Equal to Sum of Descendants |
Python |
Medium |
1975 |
Maximum Matrix Sum |
Python |
Medium |
1980 |
Find Unique Binary String |
C++ |
Medium |
1992 |
Find All Groups of Farmland |
Python |
Medium |
1996 |
The Number of Weak Characters in the Game |
C++ |
Medium |
2000 |
Reverse Prefix of Word |
Python |
Easy |
2007 |
Find Original Array From Doubled Array |
C++ |
Medium |
2009 |
Minimum Number of Operations to Make Array Continuous |
C++ |
Hard |
2017 |
Grid Game |
Rust |
Medium |
2022 |
Convert 1D Array Into 2D Array |
Python |
Easy |
2024 |
Maximize the Confusion of an Exam |
C++ |
Medium |
2028 |
Find Missing Observations |
Python |
Medium |
2037 |
Minimum Number of Moves to Seat Everyone |
Python |
Easy |
2038 |
Remove Colored Pieces if Both Neighbors are the Same Color |
C++ |
Medium |
2044 |
Count Number of Maximum Bitwise-OR Subsets |
Python |
Medium |
2046 |
Sort Linked List Already Sorted Using Absolute Values |
C++ |
Medium |
2050 |
Parallel Courses III |
C++ |
Hard |
2053 |
Kth Distinct String in an Array |
Python |
Easy |
2054 |
Two Best Non-Overlapping Events |
Python |
Medium |
2058 |
Find the Minimum and Maximum Number of Nodes Between Critical Points |
Python |
Medium |
2064 |
Minimized Maximum of Products Distributed to Any Store |
Python |
Medium |
2070 |
Most Beautiful Item for Each Query |
Python |
Medium |
2073 |
Time Needed to Buy Tickets |
Python |
Easy |
2090 |
K Radius Subarray Averages |
C++ Python |
Medium |
2092 |
Find All People With Secret |
Python |
Hard |
2095 |
Delete the Middle Node of a Linked List |
C++ Python Java |
Medium |
2096 |
Step-By-Step Directions From a Binary Tree Node to Another |
Python |
Medium |
2101 |
Detonate the Maximum Bombs |
C++ |
Medium |
2102 |
Sequentially Ordinal Rank Tracker |
C++ |
Hard |
2104 |
Sum of Subarray Ranges |
C++ |
Medium |
2108 |
Find First Palindromic String in the Array |
Python |
Easy |
2116 |
Check if a Parentheses String Can Be Valid |
Python Rust |
Medium |
2125 |
Number of Laser Beams in a Bank |
Python |
Medium |
2130 |
Maximum Twin Sum of a Linked List |
C++ Python Java |
Medium |
2131 |
Longest Palindrome by Concatenating Two Letter Words |
C++ |
Medium |
2134 |
Minimum Swaps to Group All 1's Together II |
Python |
Medium |
2136 |
Earliest Possible Day of Full Bloom |
C++ |
Hard |
2140 |
Solving Questions With Brainpower |
C++ |
Medium |
2141 |
Maximum Running Time of N Computers |
C++ |
Hard |
2147 |
Number of Ways to Divide a Long Corridor |
C++ |
Hard |
2149 |
Rearrange Array Elements by Sign |
Python |
Medium |
2181 |
Merge Nodes in Between Zeros |
Python |
Medium |
2182 |
Construct String With Repeat Limit |
Python |
Medium |
2185 |
Counting Words With a Given Prefix |
Rust |
Easy |
2187 |
Minimum Time to Complete Trips |
C++ |
Medium |
2190 |
Adding Spaces to a String |
Python |
Medium |
2191 |
Sort the Jumbled Numbers |
Python |
Medium |
2192 |
All Ancestors of a Node in a Directed Acyclic Graph |
Python |
Medium |
2193 |
Minimum Number of Moves to Make Palindrome |
C++ |
Hard |
2196 |
Create Binary Tree From Descriptions |
Python |
Medium |
2210 |
Count Hills and Valleys in an Array |
C++ |
Easy |
2211 |
Count Collisions on a Road |
C++ |
Medium |
2212 |
Maximum Points in an Archery Competition |
C++ |
Medium |
2213 |
Longest Substring of One Repeating Character |
C++ |
Hard |
2214 |
Minimum Health to Beat Game |
C++ |
Medium |
2215 |
Find the Difference of Two Arrays |
C++ Python Java |
Easy |
2216 |
Minimum Deletions to Make Array Beautiful |
C++ |
Medium |
2217 |
Find Palindrome With Fixed Length |
C++ |
Medium |
2218 |
Maximum Value of K Coins From Piles |
C++ |
Hard |
2220 |
Minimum Bit Flips to Convert Number |
Python |
Easy |
2221 |
Find Triangular Sum of an Array |
C++ |
Medium |
2224 |
Minimum Number of Operations to Convert Time |
C++ |
Easy |
2225 |
Find Players With Zero or One Losses |
C++ Python Go |
Medium |
2226 |
Maximum Candies Allocated to K Children |
C++ |
Medium |
2227 |
Encrypt and Decrypt Strings |
C++ Python |
Hard |
2234 |
Maximum Total Beauty of the Gardens |
C++ |
Medium |
2243 |
Calculate Digit Sum of a String |
C++ |
Easy |
2244 |
Minimum Rounds to Complete All Tasks |
C++ |
Medium |
2245 |
Maximum Trailing Zeros in a Cornered Path |
C++ |
Medium |
2246 |
Longest Path With Different Adjacent Characters |
C++ |
Hard |
2248 |
Intersection of Multiple Arrays |
C++ |
Easy |
2249 |
Count Lattice Points Inside a Circle |
C++ |
Medium |
2250 |
Count Number of Rectangles Containing Each Point |
C++ |
Medium |
2251 |
Number of Flowers in Full Bloom |
C++ |
Hard |
2255 |
Count Prefixes of a Given String |
C++ |
Easy |
2256 |
Minimum Average Difference |
C++ |
Medium |
2257 |
Count Unguarded Cells in the Grid |
C++ |
Medium |
2258 |
Escape the Spreading Fire |
C++ |
Hard |
2259 |
Remove Digit From Number to Maximize Result |
C++ |
Easy |
2260 |
Minimum Consecutive Cards to Pick Up |
C++ |
Medium |
2261 |
K Divisible Elements Subarrays |
C++ |
Medium |
2262 |
Total Appeal of A String |
C++ |
Hard |
2264 |
Largest 3-Same-Digit Number in String |
C++ Python |
Easy |
2265 |
Count Nodes Equal to Average of Subtree |
C++ |
Medium |
2266 |
Count Number of Texts |
C++ |
Medium |
2267 |
Check if There Is a Valid Parentheses String Path |
C++ |
Hard |
2269 |
Find the K-Beauty of a Number |
C++ |
Easy |
2270 |
Number of Ways to Split Array |
C++ Python |
Medium |
2271 |
Maximum White Tiles Covered by a Carpet |
C++ |
Medium |
2272 |
Substring With Largest Variance |
C++ |
Hard |
2273 |
Find Resultant Array After Removing Anagrams |
C++ |
Easy |
2274 |
Maximum Consecutive Floors Without Special Floors |
C++ |
Medium |
2275 |
Largest Combination With Bitwise AND Greater Than Zero |
C++ Python |
Medium |
2276 |
Count Integers in Intervals |
C++ |
Hard |
2278 |
Percentage of Letter in String |
C++ |
Easy |
2279 |
Maximum Bags With Full Capacity of Rocks |
C++ |
Medium |
2280 |
Minimum Lines to Represent a Line Chart |
C++ |
Medium |
2281 |
Sum of Total Strength of Wizards |
C++ |
Hard |
2283 |
Check if Number Has Equal Digit Count and Digit Value |
C++ |
Easy |
2284 |
Sender With Largest Word Count |
C++ |
Medium |
2285 |
Maximum Total Importance of Roads |
C++ Python |
Medium |
2286 |
Booking Concert Tickets in Groups |
C++ |
Hard |
2287 |
Rearrange Characters to Make Target String |
C++ |
Easy |
2288 |
Apply Discount to Prices |
C++ |
Medium |
2289 |
Steps to Make Array Non-decreasing |
C++ |
Medium |
2290 |
Minimum Obstacle Removal to Reach Corner |
C++ |
Hard |
2293 |
Min Max Game |
C++ |
Easy |
2294 |
Partition Array Such That Maximum Difference Is K |
C++ |
Medium |
2295 |
Replace Elements in an Array |
C++ |
Hard |
2296 |
Design a Text Editor |
C++ |
Hard |
2299 |
Strong Password Checker II |
C++ |
Easy |
2300 |
Successful Pairs of Spells and Potions |
C++ Python |
Medium |
2301 |
Match Substring After Replacement |
C++ |
Hard |
2302 |
Count Subarrays With Score Less Than K |
C++ |
Hard |
2303 |
Calculate Amount Paid in Taxes |
C++ |
Easy |
2304 |
Minimum Path Cost in a Grid |
C++ |
Medium |
2305 |
Fair Distribution of Cookies |
C++ |
Medium |
2306 |
Naming a Company |
C++ |
Hard |
2309 |
Greatest English Letter in Upper and Lower Case |
C++ |
Easy |
2310 |
Sum of Numbers With Units Digit K |
C++ |
Medium |
2311 |
Longest Binary Subsequence Less Than or Equal to K |
C++ |
Medium |
2312 |
Selling Pieces of Wood |
C++ |
Hard |
2315 |
Count Asterisks |
C++ |
Easy |
2316 |
Count Unreachable Pairs of Nodes in an Undirected Graph |
C++ |
Medium |
2317 |
Maximum XOR After Operations |
C++ |
Medium |
2318 |
Number of Distinct Roll Sequences |
C++ |
Hard |
2325 |
Decode the Message |
C++ |
Easy |
2326 |
Spiral Matrix IV |
C++ Python |
Medium |
2327 |
Number of People Aware of a Secret |
C++ |
Medium |
2328 |
Number of Increasing Paths in a Grid |
C++ |
Hard |
2331 |
Evaluate Boolean Binary Tree |
Python |
Easy |
2335 |
Minimum Amount of Time to Fill Cups |
C++ |
Easy |
2336 |
Smallest Number in Infinite Set |
C++ Python Go |
Medium |
2337 |
Move Pieces to Obtain a String |
C++ |
Medium |
2338 |
Count the Number of Ideal Arrays |
C++ |
Hard |
2348 |
Number of Zero-Filled Subarrays |
C++ |
Medium |
2352 |
Equal Row and Column Pairs |
C++ Python Go Java |
Medium |
2353 |
Design a Food Rating System |
C++ |
Medium |
2355 |
Maximum Number of Books You Can Take |
C++ |
Hard |
2359 |
Find Closest Node to Given Two Nodes |
C++ |
Medium |
2360 |
Longest Cycle in a Graph |
C++ |
Hard |
2361 |
Minimum Costs Using the Train Line |
C++ |
Hard |
2366 |
Minimum Replacements to Sort the Array |
C++ |
Hard |
2369 |
Check if There is a Valid Partition For The Array |
C++ |
Medium |
2370 |
Longest Ideal Subsequence |
Python |
Medium |
2373 |
Largest Local Values in a Matrix |
C++ Python |
Easy |
2374 |
Node With Highest Edge Score |
C++ |
Medium |
2375 |
Construct Smallest Number From DI String |
C++ |
Medium |
2376 |
Count Special Integers |
C++ |
Hard |
2379 |
Minimum Recolors to Get K Consecutive Black Blocks |
C++ |
Easy |
2380 |
Time Needed to Rearrange a Binary String |
C++ |
Medium |
2381 |
Shifting Letters II |
C++ Python |
Medium |
2382 |
Maximum Segment Sum After Removals |
C++ |
Hard |
2383 |
Minimum Hours of Training to Win a Competition |
C++ |
Easy |
2384 |
Largest Palindromic Number |
C++ |
Medium |
2385 |
Amount of Time for Binary Tree to Be Infected |
C++ Python |
Medium |
2386 |
Find the K-Sum of an Array |
C++ |
Hard |
2389 |
Longest Subsequence With Limited Sum |
C++ |
Easy |
2390 |
Removing Stars From a String |
C++ Python Java |
Medium |
2391 |
Minimum Amount of Time to Collect Garbage |
C++ |
Medium |
2392 |
Build a Matrix With Conditions |
Python |
Hard |
2395 |
Find Subarrays With Equal Sum |
C++ |
Easy |
2396 |
Strictly Palindromic Number |
C++ |
Medium |
2397 |
Maximum Rows Covered by Columns |
C++ |
Medium |
2398 |
Maximum Number of Robots Within Budget |
C++ |
Hard |
2402 |
meeting-rooms-iii |
Python |
Hard |
2405 |
Optimal Partition of String |
C++ |
Medium |
2406 |
Divide Intervals Into Minimum Number of Groups |
Python |
Medium |
2413 |
Smallest Even Multiple |
C++ |
Easy |
2414 |
Length of the Longest Alphabetical Continuous Substring |
C++ |
Medium |
2415 |
Reverse Odd Levels of Binary Tree |
C++ Python |
Medium |
2416 |
Sum of Prefix Scores of Strings |
C++ Java |
Hard |
2418 |
Sort the People |
Python |
Easy |
2419 |
Longest Subarray With Maximum Bitwise AND |
Python |
Medium |
2421 |
Number of Good Paths |
C++ |
Hard |
2423 |
Remove Letter To Equalize Frequency |
C++ |
Easy |
2424 |
Longest Uploaded Prefix |
C++ |
Medium |
2425 |
Bitwise XOR of All Pairings |
C++ Python Rust |
Medium |
2426 |
Number of Pairs Satisfying Inequality |
C++ |
Hard |
2427 |
Number of Common Factors |
C++ |
Easy |
2428 |
Maximum Sum of an Hourglass |
C++ |
Medium |
2429 |
Minimize XOR |
C++ Python Rust |
Medium |
2430 |
Maximum Deletions on a String |
C++ |
Hard |
2432 |
The Employee That Worked on the Longest Task |
C++ |
Easy |
2433 |
Find The Original Array of Prefix Xor |
C++ |
Medium |
2434 |
Using a Robot to Print the Lexicographically Smallest String |
C++ |
Medium |
2435 |
Paths in Matrix Whose Sum Is Divisible by K |
C++ |
Hard |
2437 |
Number of Valid Clock Times |
C++ |
Easy |
2438 |
Range Product Queries of Powers |
C++ |
Medium |
2439 |
Minimize Maximum of Array |
C++ |
Medium |
2440 |
Create Components With Same Value |
C++ |
Hard |
2441 |
Largest Positive Integer That Exists With Its Negative |
Python |
Easy |
2444 |
Count Subarrays With Fixed Bounds |
C++ Python |
Hard |
2446 |
Determine if Two Events Have Conflict |
C++ |
Easy |
2447 |
Number of Subarrays With GCD Equal to K |
C++ |
Medium |
2448 |
Minimum Cost to Make Array Equal |
C++ |
Hard |
2449 |
Minimum Number of Operations to Make Arrays Similar |
C++ |
Hard |
2458 |
Height of Binary Tree After Subtree Removal Queries |
Python |
Hard |
2461 |
Maximum Sum of Distinct Subarrays With Length K |
Python |
Medium |
2462 |
Total Cost to Hire K Workers |
C++ Python |
Medium |
2463 |
Minimum Total Distance Traveled |
Python |
Hard |
2466 |
Count Ways To Build Good Strings |
C++ |
Medium |
2471 |
Minimum Number of Operations to Sort a Binary Tree by Level |
Python |
Medium |
2477 |
Minimum Fuel Cost to Report to the Capital |
C++ |
Medium |
2482 |
Difference Between Ones and Zeros in Row and Column |
C++ |
Medium |
2483 |
Minimum Penalty for a Shop |
C++ |
Medium |
2485 |
Find the Pivot Integer |
Python |
Easy |
2486 |
Append Characters to String to Make Subsequence |
Python |
Medium |
2487 |
Remove Nodes From Linked List |
Python |
Medium |
2490 |
Circular Sentence |
Python |
Easy |
2491 |
Divide Players Into Teams of Equal Skill |
Python |
Medium |
2492 |
Minimum Score of a Path Between Two Cities |
C++ |
Medium |
2510 |
Longest Square Streak in an Array |
Python |
Medium |
2516 |
Take K of Each Character From Left and Right |
Python |
Medium |
2530 |
Maximal Score After Applying K Operations |
Python |
Medium |
2533 |
Number of Good Binary Strings |
C++ |
Medium |
2540 |
Minimum Common Value |
Python |
Easy |
2542 |
Maximum Subsequence Score |
C++ Python Go |
Medium |
2551 |
Put Marbles in Bags |
C++ |
Hard |
2554 |
Maximum Number of Integers to Choose From a Range I |
Python |
Medium |
2558 |
Take Gifts From the Richest Pile |
Python |
Easy |
2559 |
Count Vowel Strings in Ranges |
Python |
Medium |
2582 |
Pass the Pillow |
Python |
Easy |
2583 |
Kth Largest Sum in a Binary Tree |
Python |
Medium |
2593 |
Find Score of an Array After Marking All Elements |
Python |
Medium |
2597 |
The Number of Beautiful Subsets |
Python |
Medium |
2601 |
Prime Subtraction Operation |
Python |
Medium |
2610 |
Convert an Array Into a 2D Array With Conditions |
C++ Python |
Medium |
2616 |
Minimize the Maximum Difference of Pairs |
C++ |
Medium |
2641 |
Cousins in Binary Tree II |
Python |
Medium |
2642 |
Design Graph With Shortest Path Calculator |
C++ |
Hard |
2657 |
Find the Prefix Common Array of Two Arrays |
Python Rust |
Medium |
2661 |
First Completely Painted Row or Column |
Rust |
Medium |
2667 |
Create Hello World Function |
JavaScript |
Easy |
2678 |
Number of Senior Citizens |
Python |
Easy |
2683 |
Neighboring Bitwise XOR |
Python Rust |
Medium |
2684 |
Maximum Number of Moves in a Grid |
Python |
Medium |
2696 |
Minimum String Length After Removing Substrings |
Python |
Easy |
2699 |
Modify Graph Edge Weights |
Python |
Hard |
2706 |
Buy Two Chocolates |
C++ |
Easy |
2707 |
Extra Characters in a String |
C++ Java |
Medium |
2709 |
Greatest Common Divisor Traversal |
Python |
Hard |
2742 |
Painting the Walls |
C++ |
Hard |
2751 |
Robot Collisions |
Python |
Hard |
2762 |
Continuous Subarrays |
Python |
Medium |
2779 |
Maximum Beauty of an Array After Applying Operation |
Python |
Medium |
2785 |
Sort Vowels in a String |
C++ |
Medium |
2807 |
Insert Greatest Common Divisors in Linked List |
Python |
Medium |
2812 |
Find the Safest Path in a Grid |
C++ |
Medium |
2816 |
Double a Number Represented as a Linked List |
Python |
Medium |
2825 |
Make String a Subsequence Using Cyclic Increments |
Python |
Medium |
2849 |
Determine if a Cell Is Reachable at a Given Time |
C++ |
Medium |
2864 |
Maximum Odd Binary Number |
Python |
Easy |
2870 |
Minimum Number of Operations to Make Array Empty |
C++ Python |
Medium |
2914 |
Minimum Number of Changes to Make Binary String Beautiful |
Python |
Medium |
2924 |
Find Champion II |
Python |
Medium |
2958 |
Length of Longest Subarray With at Most K Frequency |
Python |
Medium |
2962 |
Count Subarrays Where Max Element Appears at Least K Times |
Python |
Medium |
2966 |
Divide Array Into Arrays With Max Difference |
Python |
Medium |
2971 |
Find Polygon With the Largest Perimeter |
Python |
Medium |
2976 |
Minimum Cost to Convert String I |
Python |
Medium |
2981 |
Find Longest Special Substring That Occurs Thrice I |
Python |
Medium |
2997 |
Minimum Number of Operations to Make Array XOR Equal to K |
Python |
Medium |
3005 |
Count Elements With Maximum Frequency |
Python |
Easy |
3011 |
Find if Array Can Be Sorted |
Python |
Medium |
3016 |
Minimum Number of Pushes to Type Word II |
Python |
Medium |
3042 |
Count Prefix and Suffix Pairs I |
Python Rust |
Easy |
3043 |
Find the Length of the Longest Common Prefix |
Java |
Medium |
3062 |
Winner of the Linked List Game |
Python |
Easy |
3063 |
Linked List Frequency |
Python |
Easy |
3068 |
Find the Maximum Sum of Node Values |
Python |
Hard |
3075 |
Maximize Happiness of Selected Children |
Python |
Medium |
3110 |
Score of a String |
Python |
Easy |
3133 |
Minimum Array End |
Python |
Medium |
3152 |
Special Array II |
Python |
Medium |
3163 |
String Compression III |
Python |
Medium |
3203 |
Find Minimum Diameter After Merging Two Trees |
Python |
Hard |
3217 |
Delete Nodes From Linked List Present in Array |
Python |
Medium |
3223 |
Minimum Length of String After Operations |
Python Rust |
Medium |
3254 |
Find the Power of K-Size Subarrays I |
Python |
Medium |
3264 |
Final Array State After K Multiplication Operations I |
Python |
Easy |