| 1 |
Two Sum
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 9 |
Palindrome Number
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 13 |
Roman to Integer
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 14 |
Longest Common Prefix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 20 |
Valid Parentheses
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 21 |
Merge Two Sorted Lists
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 26 |
Remove Duplicates from Sorted Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 27 |
Remove Element
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 28 |
Find the Index of the First Occurrence in a String
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 35 |
Search Insert Position
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 58 |
Length of Last Word
|
✅
|
✅
|
❌
|
✅
|
✅
|
❌
|
| 66 |
Plus One
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 67 |
Add Binary
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 69 |
Sqrt(x)
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 70 |
Climbing Stairs
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 83 |
Remove Duplicates from Sorted List
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 88 |
Merge Sorted Array
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 94 |
Binary Tree Inorder Traversal
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 100 |
Same Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 101 |
Symmetric Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 104 |
Maximum Depth of Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 108 |
Convert Sorted Array to Binary Search Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 110 |
Balanced Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 111 |
Minimum Depth of Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 112 |
Path Sum
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 118 |
Pascal's Triangle
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 119 |
Pascal's Triangle II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 121 |
Best Time to Buy and Sell Stock
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 125 |
Valid Palindrome
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 136 |
Single Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 141 |
Linked List Cycle
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 144 |
Binary Tree Preorder Traversal
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 145 |
Binary Tree Postorder Traversal
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 157 |
Read N Characters Given Read4
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 160 |
Intersection of Two Linked Lists
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 163 |
Missing Ranges
|
✅
|
✅
|
❌
|
✅
|
✅
|
⚠️
|
| 168 |
Excel Sheet Column Title
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 169 |
Majority Element
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 170 |
Two Sum III - Data structure design
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 171 |
Excel Sheet Column Number
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 190 |
Reverse Bits
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 191 |
Number of 1 Bits
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 202 |
Happy Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 203 |
Remove Linked List Elements
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 205 |
Isomorphic Strings
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 206 |
Reverse Linked List
|
✅
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 217 |
Contains Duplicate
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 219 |
Contains Duplicate II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 225 |
Implement Stack using Queues
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 226 |
Invert Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 228 |
Summary Ranges
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 231 |
Power of Two
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 232 |
Implement Queue using Stacks
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 234 |
Palindrome Linked List
|
✅
|
❌
|
⚠️
|
❌
|
❌
|
❌
|
| 242 |
Valid Anagram
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 243 |
Shortest Word Distance
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 246 |
Strobogrammatic Number
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 252 |
Meeting Rooms
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 257 |
Binary Tree Paths
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 258 |
Add Digits
|
✅
|
✅
|
✅
|
✅
|
❌
|
❌
|
| 263 |
Ugly Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 266 |
Palindrome Permutation
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 268 |
Missing Number
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 270 |
Closest Binary Search Tree Value
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 278 |
First Bad Version
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 283 |
Move Zeroes
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 290 |
Word Pattern
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 292 |
Nim Game
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 293 |
Flip Game
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 303 |
Range Sum Query - Immutable
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 326 |
Power of Three
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 338 |
Counting Bits
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 342 |
Power of Four
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 344 |
Reverse String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 345 |
Reverse Vowels of a String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 346 |
Moving Average from Data Stream
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 349 |
Intersection of Two Arrays
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 350 |
Intersection of Two Arrays II
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 359 |
Logger Rate Limiter
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 367 |
Valid Perfect Square
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 374 |
Guess Number Higher or Lower
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 383 |
Ransom Note
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 387 |
First Unique Character in a String
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 389 |
Find the Difference
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 392 |
Is Subsequence
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 401 |
Binary Watch
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 404 |
Sum of Left Leaves
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 405 |
Convert a Number to Hexadecimal
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 408 |
Valid Word Abbreviation
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 409 |
Longest Palindrome
|
✅
|
✅
|
❌
|
✅
|
✅
|
❌
|
| 412 |
Fizz Buzz
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 414 |
Third Maximum Number
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 415 |
Add Strings
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 422 |
Valid Word Square
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 434 |
Number of Segments in a String
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 441 |
Arranging Coins
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 448 |
Find All Numbers Disappeared in an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 455 |
Assign Cookies
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 459 |
Repeated Substring Pattern
|
✅
|
✅
|
⚠️
|
✅
|
❌
|
❌
|
| 461 |
Hamming Distance
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 463 |
Island Perimeter
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 476 |
Number Complement
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 482 |
License Key Formatting
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 485 |
Max Consecutive Ones
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 492 |
Construct the Rectangle
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 495 |
Teemo Attacking
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 496 |
Next Greater Element I
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 500 |
Keyboard Row
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 501 |
Find Mode in Binary Search Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 504 |
Base 7
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 506 |
Relative Ranks
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 507 |
Perfect Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 509 |
Fibonacci Number
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 520 |
Detect Capital
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 521 |
Longest Uncommon Subsequence I
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 530 |
Minimum Absolute Difference in BST
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 541 |
Reverse String II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 543 |
Diameter of Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 551 |
Student Attendance Record I
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 557 |
Reverse Words in a String III
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 559 |
Maximum Depth of N-ary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 561 |
Array Partition
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 563 |
Binary Tree Tilt
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 566 |
Reshape the Matrix
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 572 |
Subtree of Another Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 575 |
Distribute Candies
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 589 |
N-ary Tree Preorder Traversal
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 590 |
N-ary Tree Postorder Traversal
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 594 |
Longest Harmonious Subsequence
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 598 |
Range Addition II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 599 |
Minimum Index Sum of Two Lists
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 604 |
Design Compressed String Iterator
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 605 |
Can Place Flowers
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 606 |
Construct String from Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 617 |
Merge Two Binary Trees
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 628 |
Maximum Product of Three Numbers
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 637 |
Average of Levels in Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 643 |
Maximum Average Subarray I
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 645 |
Set Mismatch
|
✅
|
✅
|
✅
|
✅
|
✅
|
❌
|
| 653 |
Two Sum IV - Input is a BST
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 657 |
Robot Return to Origin
|
✅
|
✅
|
❌
|
✅
|
✅
|
❌
|
| 661 |
Image Smoother
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 671 |
Second Minimum Node In a Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 674 |
Longest Continuous Increasing Subsequence
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 680 |
Valid Palindrome II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 682 |
Baseball Game
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 693 |
Binary Number with Alternating Bits
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 696 |
Count Binary Substrings
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 697 |
Degree of an Array
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 700 |
Search in a Binary Search Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 703 |
Kth Largest Element in a Stream
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 704 |
Binary Search
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 705 |
Design HashSet
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 706 |
Design HashMap
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 709 |
To Lower Case
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 717 |
1-bit and 2-bit Characters
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 724 |
Find Pivot Index
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 728 |
Self Dividing Numbers
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 733 |
Flood Fill
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 734 |
Sentence Similarity
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 744 |
Find Smallest Letter Greater Than Target
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 746 |
Min Cost Climbing Stairs
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 747 |
Largest Number At Least Twice of Others
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 748 |
Shortest Completing Word
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 760 |
Find Anagram Mappings
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 762 |
Prime Number of Set Bits in Binary Representation
|
✅
|
✅
|
❌
|
✅
|
✅
|
❌
|
| 766 |
Toeplitz Matrix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 771 |
Jewels and Stones
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 783 |
Minimum Distance Between BST Nodes
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 796 |
Rotate String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 800 |
Similar RGB Color
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 804 |
Unique Morse Code Words
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 806 |
Number of Lines To Write String
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 812 |
Largest Triangle Area
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 819 |
Most Common Word
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 821 |
Shortest Distance to a Character
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 824 |
Goat Latin
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 830 |
Positions of Large Groups
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 832 |
Flipping an Image
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 836 |
Rectangle Overlap
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 844 |
Backspace String Compare
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 859 |
Buddy Strings
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 860 |
Lemonade Change
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 867 |
Transpose Matrix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 868 |
Binary Gap
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 872 |
Leaf-Similar Trees
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 876 |
Middle of the Linked List
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 883 |
Projection Area of 3D Shapes
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 884 |
Uncommon Words from Two Sentences
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 888 |
Fair Candy Swap
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 892 |
Surface Area of 3D Shapes
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 896 |
Monotonic Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 897 |
Increasing Order Search Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 905 |
Sort Array By Parity
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 908 |
Smallest Range I
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 914 |
X of a Kind in a Deck of Cards
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 917 |
Reverse Only Letters
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 922 |
Sort Array By Parity II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 925 |
Long Pressed Name
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 929 |
Unique Email Addresses
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 933 |
Number of Recent Calls
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 938 |
Range Sum of BST
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 941 |
Valid Mountain Array
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 942 |
DI String Match
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 944 |
Delete Columns to Make Sorted
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 953 |
Verifying an Alien Dictionary
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 961 |
N-Repeated Element in Size 2N Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 965 |
Univalued Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 976 |
Largest Perimeter Triangle
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 977 |
Squares of a Sorted Array
|
✅
|
✅
|
✅
|
✅
|
❌
|
❌
|
| 989 |
Add to Array-Form of Integer
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 993 |
Cousins in Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 997 |
Find the Town Judge
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 999 |
Available Captures for Rook
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1002 |
Find Common Characters
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1005 |
Maximize Sum Of Array After K Negations
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1009 |
Complement of Base 10 Integer
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1013 |
Partition Array Into Three Parts With Equal Sum
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1018 |
Binary Prefix Divisible By 5
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1021 |
Remove Outermost Parentheses
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 1022 |
Sum of Root To Leaf Binary Numbers
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1025 |
Divisor Game
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1030 |
Matrix Cells in Distance Order
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1037 |
Valid Boomerang
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1046 |
Last Stone Weight
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1047 |
Remove All Adjacent Duplicates In String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1051 |
Height Checker
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1056 |
Confusing Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1064 |
Fixed Point
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1065 |
Index Pairs of a String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1071 |
Greatest Common Divisor of Strings
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1078 |
Occurrences After Bigram
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1085 |
Sum of Digits in the Minimum Number
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 1086 |
High Five
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1089 |
Duplicate Zeros
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1099 |
Two Sum Less Than K
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1103 |
Distribute Candies to People
|
✅
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1108 |
Defanging an IP Address
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1118 |
Number of Days in a Month
|
✅
|
✅
|
⚠️
|
✅
|
✅
|
❌
|
| 1119 |
Remove Vowels from a String
|
✅
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1122 |
Relative Sort Array
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1128 |
Number of Equivalent Domino Pairs
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1133 |
Largest Unique Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1134 |
Armstrong Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1137 |
N-th Tribonacci Number
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1150 |
Check If a Number Is Majority Element in a Sorted Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1154 |
Day of the Year
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1160 |
Find Words That Can Be Formed by Characters
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1165 |
Single-Row Keyboard
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1175 |
Prime Arrangements
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1176 |
Diet Plan Performance
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1180 |
Count Substrings with Only One Distinct Letter
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 1184 |
Distance Between Bus Stops
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1185 |
Day of the Week
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1189 |
Maximum Number of Balloons
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1196 |
How Many Apples Can You Put into the Basket
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1200 |
Minimum Absolute Difference
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1207 |
Unique Number of Occurrences
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1213 |
Intersection of Three Sorted Arrays
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1217 |
Minimum Cost to Move Chips to The Same Position
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1221 |
Split a String in Balanced Strings
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1228 |
Missing Number In Arithmetic Progression
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1232 |
Check If It Is a Straight Line
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1243 |
Array Transformation
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1252 |
Cells with Odd Values in a Matrix
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1260 |
Shift 2D Grid
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1266 |
Minimum Time Visiting All Points
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1271 |
Hexspeak
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1275 |
Find Winner on a Tic Tac Toe Game
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1281 |
Subtract the Product and Sum of Digits of an Integer
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1287 |
Element Appearing More Than 25% In Sorted Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1290 |
Convert Binary Number in a Linked List to Integer
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1295 |
Find Numbers with Even Number of Digits
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1299 |
Replace Elements with Greatest Element on Right Side
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1304 |
Find N Unique Integers Sum up to Zero
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 1309 |
Decrypt String from Alphabet to Integer Mapping
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1313 |
Decompress Run-Length Encoded List
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1317 |
Convert Integer to the Sum of Two No-Zero Integers
|
✅
|
✅
|
⚠️
|
✅
|
✅
|
⚠️
|
| 1323 |
Maximum 69 Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1331 |
Rank Transform of an Array
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1332 |
Remove Palindromic Subsequences
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1337 |
The K Weakest Rows in a Matrix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1342 |
Number of Steps to Reduce a Number to Zero
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1346 |
Check If N and Its Double Exist
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1351 |
Count Negative Numbers in a Sorted Matrix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1356 |
Sort Integers by The Number of 1 Bits
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1360 |
Number of Days Between Two Dates
|
✅
|
✅
|
⚠️
|
✅
|
❌
|
❌
|
| 1365 |
How Many Numbers Are Smaller Than the Current Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1370 |
Increasing Decreasing String
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1374 |
Generate a String With Characters That Have Odd Counts
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1379 |
Find a Corresponding Node of a Binary Tree in a Clone of That Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1380 |
Lucky Numbers in a Matrix
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1385 |
Find the Distance Value Between Two Arrays
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1394 |
Find Lucky Integer in an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1399 |
Count Largest Group
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1403 |
Minimum Subsequence in Non-Increasing Order
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1408 |
String Matching in an Array
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1413 |
Minimum Value to Get Positive Step by Step Sum
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1417 |
Reformat The String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1422 |
Maximum Score After Splitting a String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1426 |
Counting Elements
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1427 |
Perform String Shifts
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1431 |
Kids With the Greatest Number of Candies
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1436 |
Destination City
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1437 |
Check If All 1's Are at Least Length K Places Away
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1446 |
Consecutive Characters
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1450 |
Number of Students Doing Homework at a Given Time
|
✅
|
✅
|
❌
|
✅
|
✅
|
✅
|
| 1455 |
Check If a Word Occurs As a Prefix of Any Word in a Sentence
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1460 |
Make Two Arrays Equal by Reversing Subarrays
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1464 |
Maximum Product of Two Elements in an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1469 |
Find All The Lonely Nodes
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1470 |
Shuffle the Array
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1474 |
Delete N Nodes After M Nodes of a Linked List
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1475 |
Final Prices With a Special Discount in a Shop
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1480 |
Running Sum of 1d Array
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1486 |
XOR Operation in an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1491 |
Average Salary Excluding the Minimum and Maximum Salary
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1496 |
Path Crossing
|
✅
|
✅
|
⚠️
|
✅
|
❌
|
❌
|
| 1502 |
Can Make Arithmetic Progression From Sequence
|
✅
|
✅
|
✅
|
✅
|
✅
|
⚠️
|
| 1507 |
Reformat Date
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1512 |
Number of Good Pairs
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1518 |
Water Bottles
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1523 |
Count Odd Numbers in an Interval Range
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1528 |
Shuffle String
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 1534 |
Count Good Triplets
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1539 |
Kth Missing Positive Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1544 |
Make The String Great
|
❌
|
❌
|
❌
|
✅
|
✅
|
✅
|
| 1550 |
Three Consecutive Odds
|
✅
|
✅
|
⚠️
|
✅
|
❌
|
❌
|
| 1556 |
Thousand Separator
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1560 |
Most Visited Sector in a Circular Track
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1566 |
Detect Pattern of Length M Repeated K or More Times
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1572 |
Matrix Diagonal Sum
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1576 |
Replace All ?'s to Avoid Consecutive Repeating Characters
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1582 |
Special Positions in a Binary Matrix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1588 |
Sum of All Odd Length Subarrays
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1592 |
Rearrange Spaces Between Words
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1598 |
Crawler Log Folder
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1603 |
Design Parking System
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1608 |
Special Array With X Elements Greater Than or Equal X
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1614 |
Maximum Nesting Depth of the Parentheses
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1619 |
Mean of Array After Removing Some Elements
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1624 |
Largest Substring Between Two Equal Characters
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1629 |
Slowest Key
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1636 |
Sort Array by Increasing Frequency
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1640 |
Check Array Formation Through Concatenation
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1646 |
Get Maximum in Generated Array
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 1652 |
Defuse the Bomb
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1656 |
Design an Ordered Stream
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1662 |
Check If Two String Arrays are Equivalent
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1668 |
Maximum Repeating Substring
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1672 |
Richest Customer Wealth
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1678 |
Goal Parser Interpretation
|
✅
|
✅
|
❌
|
✅
|
✅
|
❌
|
| 1684 |
Count the Number of Consistent Strings
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1688 |
Count of Matches in Tournament
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1694 |
Reformat Phone Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1700 |
Number of Students Unable to Eat Lunch
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1704 |
Determine if String Halves Are Alike
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1708 |
Largest Subarray Length K
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1710 |
Maximum Units on a Truck
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1716 |
Calculate Money in Leetcode Bank
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1720 |
Decode XORed Array
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1725 |
Number Of Rectangles That Can Form The Largest Square
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1732 |
Find the Highest Altitude
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1736 |
Latest Time by Replacing Hidden Digits
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1742 |
Maximum Number of Balls in a Box
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1748 |
Sum of Unique Elements
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1752 |
Check if Array Is Sorted and Rotated
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 1758 |
Minimum Changes To Make Alternating Binary String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1763 |
Longest Nice Substring
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1768 |
Merge Strings Alternately
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 1773 |
Count Items Matching a Rule
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1779 |
Find Nearest Point That Has the Same X or Y Coordinate
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1784 |
Check if Binary String Has at Most One Segment of Ones
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 1790 |
Check if One String Swap Can Make Strings Equal
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 1791 |
Find Center of Star Graph
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1796 |
Second Largest Digit in a String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1800 |
Maximum Ascending Subarray Sum
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1805 |
Number of Different Integers in a String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1812 |
Determine Color of a Chessboard Square
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1816 |
Truncate Sentence
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 1822 |
Sign of the Product of an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1826 |
Faulty Sensor
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1827 |
Minimum Operations to Make the Array Increasing
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1832 |
Check if the Sentence Is Pangram
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1837 |
Sum of Digits in Base K
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1844 |
Replace All Digits with Characters
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1848 |
Minimum Distance to the Target Element
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1854 |
Maximum Population Year
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1859 |
Sorting the Sentence
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1863 |
Sum of All Subset XOR Totals
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1869 |
Longer Contiguous Segments of Ones than Zeros
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 1876 |
Substrings of Size Three with Distinct Characters
|
✅
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1880 |
Check if Word Equals Summation of Two Words
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 1886 |
Determine Whether Matrix Can Be Obtained By Rotation
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1893 |
Check if All the Integers in a Range Are Covered
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 1897 |
Redistribute Characters to Make All Strings Equal
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1903 |
Largest Odd Number in String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1909 |
Remove One Element to Make the Array Strictly Increasing
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1913 |
Maximum Product Difference Between Two Pairs
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1920 |
Build Array from Permutation
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 1925 |
Count Square Sum Triples
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1929 |
Concatenation of Array
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1933 |
Check if String Is Decomposable Into Value-Equal Substrings
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1935 |
Maximum Number of Words You Can Type
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1941 |
Check if All Characters Have Equal Number of Occurrences
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1945 |
Sum of Digits of String After Convert
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1952 |
Three Divisors
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 1957 |
Delete Characters to Make Fancy String
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1961 |
Check If String Is a Prefix of Array
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 1967 |
Number of Strings That Appear as Substrings in Word
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1971 |
Find if Path Exists in Graph
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 1974 |
Minimum Time to Type Word Using Special Typewriter
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 1979 |
Find Greatest Common Divisor of Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1984 |
Minimum Difference Between Highest and Lowest of K Scores
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 1991 |
Find the Middle Index in Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2000 |
Reverse Prefix of Word
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2006 |
Count Number of Pairs With Absolute Difference K
|
✅
|
✅
|
❌
|
✅
|
✅
|
⚠️
|
| 2011 |
Final Value of Variable After Performing Operations
|
✅
|
✅
|
✅
|
✅
|
❌
|
❌
|
| 2016 |
Maximum Difference Between Increasing Elements
|
❌
|
❌
|
❌
|
✅
|
✅
|
✅
|
| 2022 |
Convert 1D Array Into 2D Array
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 2027 |
Minimum Moves to Convert String
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2032 |
Two Out of Three
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 2037 |
Minimum Number of Moves to Seat Everyone
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2042 |
Check if Numbers Are Ascending in a Sentence
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2047 |
Number of Valid Words in a Sentence
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2053 |
Kth Distinct String in an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2057 |
Smallest Index With Equal Value
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2062 |
Count Vowel Substrings of a String
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2068 |
Check Whether Two Strings are Almost Equivalent
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2073 |
Time Needed to Buy Tickets
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2078 |
Two Furthest Houses With Different Colors
|
✅
|
✅
|
✅
|
✅
|
❌
|
❌
|
| 2085 |
Count Common Words With One Occurrence
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2089 |
Find Target Indices After Sorting Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2094 |
Finding 3-Digit Even Numbers
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2099 |
Find Subsequence of Length K With the Largest Sum
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2103 |
Rings and Rods
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2108 |
Find First Palindromic String in the Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2114 |
Maximum Number of Words Found in Sentences
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2119 |
A Number After a Double Reversal
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 2124 |
Check if All A's Appears Before All B's
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2129 |
Capitalize the Title
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2133 |
Check if Every Row and Column Contains All Numbers
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 2138 |
Divide a String Into Groups of Size k
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 2144 |
Minimum Cost of Buying Candies With Discount
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2148 |
Count Elements With Strictly Smaller and Greater Elements
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 2154 |
Keep Multiplying Found Values by Two
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 2160 |
Minimum Sum of Four Digit Number After Splitting Digits
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2164 |
Sort Even and Odd Indices Independently
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2176 |
Count Equal and Divisible Pairs in an Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2180 |
Count Integers With Even Digit Sum
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2185 |
Counting Words With a Given Prefix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2190 |
Most Frequent Number Following Key In an Array
|
✅
|
✅
|
❌
|
✅
|
❌
|
❌
|
| 2194 |
Cells in a Range on an Excel Sheet
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2200 |
Find All K-Distant Indices in an Array
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2206 |
Divide Array Into Equal Pairs
|
✅
|
✅
|
✅
|
✅
|
✅
|
❌
|
| 2210 |
Count Hills and Valleys in an Array
|
❌
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 2215 |
Find the Difference of Two Arrays
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2220 |
Minimum Bit Flips to Convert Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2224 |
Minimum Number of Operations to Convert Time
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2229 |
Check if an Array Is Consecutive
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2231 |
Largest Number After Digit Swaps by Parity
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2235 |
Add Two Integers
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 2236 |
Root Equals Sum of Children
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2239 |
Find Closest Number to Zero
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2243 |
Calculate Digit Sum of a String
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2248 |
Intersection of Multiple Arrays
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2255 |
Count Prefixes of a Given String
|
✅
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2259 |
Remove Digit From Number to Maximize Result
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 2264 |
Largest 3-Same-Digit Number in String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2269 |
Find the K-Beauty of a Number
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2273 |
Find Resultant Array After Removing Anagrams
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2278 |
Percentage of Letter in String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2283 |
Check if Number Has Equal Digit Count and Digit Value
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2287 |
Rearrange Characters to Make Target String
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2299 |
Strong Password Checker II
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2303 |
Calculate Amount Paid in Taxes
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2309 |
Greatest English Letter in Upper and Lower Case
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2315 |
Count Asterisks
|
✅
|
✅
|
⚠️
|
✅
|
❌
|
❌
|
| 2319 |
Check if Matrix Is X-Matrix
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2325 |
Decode the Message
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2331 |
Evaluate Boolean Binary Tree
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2335 |
Minimum Amount of Time to Fill Cups
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 2341 |
Maximum Number of Pairs in Array
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2347 |
Best Poker Hand
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2351 |
First Letter to Appear Twice
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2357 |
Make Array Zero by Subtracting Equal Amounts
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2363 |
Merge Similar Items
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2367 |
Number of Arithmetic Triplets
|
✅
|
✅
|
⚠️
|
❌
|
❌
|
❌
|
| 2373 |
Largest Local Values in a Matrix
|
✅
|
✅
|
⚠️
|
✅
|
✅
|
❌
|
| 2379 |
Minimum Recolors to Get K Consecutive Black Blocks
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2383 |
Minimum Hours of Training to Win a Competition
|
✅
|
❌
|
❌
|
✅
|
✅
|
❌
|
| 2389 |
Longest Subsequence With Limited Sum
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2395 |
Find Subarrays With Equal Sum
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2399 |
Check Distances Between Same Letters
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2404 |
Most Frequent Even Element
|
✅
|
✅
|
✅
|
❌
|
❌
|
❌
|
| 2409 |
Count Days Spent Together
|
✅
|
✅
|
❌
|
❌
|
❌
|
❌
|
| 2413 |
Smallest Even Multiple
|
✅
|
✅
|
❌
|
✅
|
✅
|
❌
|
| 2418 |
Sort the People
|
❌
|
❌
|
❌
|
✅
|
✅
|
⚠️
|
| 2423 |
Remove Letter To Equalize Frequency
|
❌
|
❌
|
❌
|
✅
|
❌
|
❌
|
| 2427 |
Number of Common Factors
|
✅
|
✅
|
✅
|
✅
|
✅
|
✅
|
| 2432 |
The Employee That Worked on the Longest Task
|
✅
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2437 |
Number of Valid Clock Times
|
❌
|
❌
|
❌
|
❌
|
❌
|
❌
|
| 2441 |
Largest Positive Integer That Exists With Its Negative
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| 2446 |
Determine if Two Events Have Conflict
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✅
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✅
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⚠️
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| 2451 |
Odd String Difference
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| 2455 |
Average Value of Even Numbers That Are Divisible by Three
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| 2460 |
Apply Operations to an Array
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| 2465 |
Number of Distinct Averages
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| 2469 |
Convert the Temperature
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✅
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| 2475 |
Number of Unequal Triplets in Array
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✅
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✅
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| 2481 |
Minimum Cuts to Divide a Circle
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| 2485 |
Find the Pivot Integer
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⚠️
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✅
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| 2490 |
Circular Sentence
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✅
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| 2496 |
Maximum Value of a String in an Array
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| 2500 |
Delete Greatest Value in Each Row
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| 2506 |
Count Pairs Of Similar Strings
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| 2511 |
Maximum Enemy Forts That Can Be Captured
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✅
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| 2515 |
Shortest Distance to Target String in a Circular Array
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| 2520 |
Count the Digits That Divide a Number
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✅
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| 2525 |
Categorize Box According to Criteria
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| 2529 |
Maximum Count of Positive Integer and Negative Integer
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✅
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| 2535 |
Difference Between Element Sum and Digit Sum of an Array
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| 2540 |
Minimum Common Value
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✅
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| 2544 |
Alternating Digit Sum
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| 2549 |
Count Distinct Numbers on Board
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✅
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✅
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| 2553 |
Separate the Digits in an Array
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| 2558 |
Take Gifts From the Richest Pile
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| 2562 |
Find the Array Concatenation Value
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| 2566 |
Maximum Difference by Remapping a Digit
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✅
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| 2570 |
Merge Two 2D Arrays by Summing Values
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| 2574 |
Left and Right Sum Differences
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| 2578 |
Split With Minimum Sum
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✅
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| 2582 |
Pass the Pillow
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✅
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| 2586 |
Count the Number of Vowel Strings in Range
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| 2591 |
Distribute Money to Maximum Children
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✅
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✅
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| 2595 |
Number of Even and Odd Bits
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✅
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✅
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| 2600 |
K Items With the Maximum Sum
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✅
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✅
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⚠️
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✅
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✅
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| 2605 |
Form Smallest Number From Two Digit Arrays
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| 2609 |
Find the Longest Balanced Substring of a Binary String
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✅
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