| Ambiguous Coordinates |
Medium
|
google
|
|
| Alphabet Board Path |
Medium
|
google
zulily
|
|
| 1-bit and 2-bit Characters |
Easy
|
google
ixl
microsoft
quora
|
|
| 24 Game |
Hard
|
amazon
facebook
google
microsoft
twitter
uber
|
|
| 4 Keys Keyboard |
Medium
|
google
microsoft
|
|
| Count Different Palindromic Subsequences |
Hard
|
facebook
google
linkedin
pure-storage
|
|
| Count Numbers with Unique Digits |
Medium
|
google
|
|
| Delete Columns to Make Sorted III |
Hard
|
google
|
|
| Flatten 2D Vector |
Medium
|
airbnb
apple
facebook
google
lyft
salesforce
twitter
uber
zenefits
|
|
| Frog Jump |
Hard
|
amazon
apple
bytedance
facebook
google
microsoft
nutanix
oracle
snapchat
|
|
| Integer Break |
Medium
|
adobe
apple
google
|
|
| Queue Reconstruction by Height |
Medium
|
amazon
apple
bloomberg
bytedance
facebook
google
microsoft
|
|
| Russian Doll Envelopes |
Hard
|
amazon
google
microsoft
|
|
| Two City Scheduling |
Medium
|
amazon
bloomberg
facebook
google
|
|
| Wave Sort |
Medium
|
adobe
google
|
|
| Wiggle Sort 2 - No Adjacent Duplicates |
Medium
|
airbnb
akuna-capital
facebook
google
paypal
|
|
| Minimum Domino Rotations For Equal Row |
Medium
|
amazon
google
|
|
| Push Dominoes |
Medium
|
google
|
|
| Coins In a Line Game |
Medium
|
square
google
|
|
| Count of Range Sum |
Hard
|
google
|
|
| Domino and Tromino Tiling |
Medium
|
google
|
|
| Online Majority Element In Subarray |
Hard
|
google
nutanix
|
|
| Range Sum Query 2D - Mutable |
Medium
|
facebook
google
microsoft
|
|
| Super Egg Drop |
Hard
|
facebook
goldman-sachs
google
microsoft
|
|
| Lowest Common Ancestor of Deepest Leaves |
Medium
|
bloomberg
facebook
google
|
|
| Construct Binary Tree from Preorder and Postorder Traversal |
Medium
|
amazon
bloomberg
facebook
google
uber
|
|
| Letter Tile Possibilities |
Medium
|
google
microsoft
|
|
| Product of the Last K Numbers |
Medium
|
google
|
|
| Making A Large Island |
Hard
|
amazon
facebook
google
uber
|
|
| Count elements in range in sorted matrix |
Hard
|
google
|
|
| Longest subarray with distinct elements |
Easy
|
google
|
|
| Fix the variable capture in closure |
Medium
|
google
|
|
| Check if any pair of rectangles overlap |
Easy
|
google
|
|
| Area of intersection of two rectangles |
Easy
|
google
|
|
| Count Servers that Communicate |
Medium
|
amazon
google
|
|
| Split string into fewest palindromic substrings |
Hard
|
google
|
|
| Run a Markov chain and count state visits |
Easy
|
google
|
|
| Construct Binary Search Tree BST from Postorder Traversal |
Medium
|
google
|
|
| Sort a linked list in O(n log n) time and constant space |
Medium
|
google
|
|
| Minimum Cost to Make at Least One Valid Path in a Grid |
Hard
|
google
|
|
| Word Subsets |
Medium
|
amazon
facebook
google
|
|
| Find nearest larger number for index in an array |
Medium
|
google
|
|
| Smallest set to cover all intervals |
Medium
|
google
microsoft
|
|
| Check if doubly linked list is palindrome |
Easy
|
google
|
|
| Alien Dictionary |
Hard
|
airbnb
amazon
apple
bloomberg
cohesity
doordash
facebook
flipkart
google
microsoft
pinterest
pocket-gems
snapchat
square
twitter
uber
vmware
|
|
| Binary Search Tree BST Operations - Delete |
Medium
|
amazon
apple
bloomberg
cisco
facebook
google
linkedin
microsoft
oracle
uber
yahoo
|
|
| Binary Search Tree BST Operations - Insert |
Medium
|
amazon
atlassian
facebook
google
microsoft
|
|
| Binary Tree Pruning |
Medium
|
amazon
buffer-box
capital-one
google
hulu
twitter
|
|
| Find Eventual Safe States |
Medium
|
google
|
|
| Find Leaves of Binary Tree |
Medium
|
amazon
atlassian
ebay
google
linkedin
pocket-gems
|
|