| Most Frequent Subtree Sum | Medium | amazon
apple | |
| Toeplitz Matrix | Easy | apple
facebook
google | |
| Delete the Middle Node of a Linked List | Medium | | |
| Check if the Sentence Is Pangram | Easy | | |
| Design Circular Deque | Medium | facebook | |
| Image Overlap | Medium | google | |
| Maximize Score After N Operations | Hard | | |
| Set Mismatch | Easy | amazon | |
| Determine if a Cell Is Reachable at a Given Time | Medium | | |
| Peak Index in a Mountain Array | Medium | amazon
bloomberg
facebook
google
microsoft
quora
uber | |
| Design Phone Directory | Medium | dropbox
google
microsoft | |
| Elimination Game | Medium | amazon
bloomberg
quora | |
| Lexicographical Numbers | Medium | adobe
bloomberg
bytedance
google | |
| Mini Parser | Medium | airbnb
google | |
| Super Pow | Medium | | |
| N-Queens 2 - Count number of distinct solutions | Hard | amazon
zenefits | |
| Make The String Great | Easy | google | |
| Minimum Cost to Move Chips to The Same Position | Easy | morgan-stanley | |
| Minimum Subsequence in Non-Increasing Order | Easy | | |
| Shortest Way to Form String | Medium | facebook
google | |
| Find Nearest Point That Has the Same X or Y Coordinate | Easy | | |
| Find Numbers with Even Number of Digits | Easy | quora | |
| Longest Univalue Path | Medium | amazon
apple
google | |
| Univalued Binary Tree | Easy | amazon
box
google
oracle
twilio | |
| Arrange Given Number To Form The Biggest Number Possible | Medium | uber | |
| Day of the Year | Easy | zscaler | |
| Range Addition 2 | Easy | ixl | |
| Minimum Moves to Equal Array Elements | Medium | amazon
apple
coursera
drawbridge
indeed | |
| Prime Arrangements | Easy | amazon | |
| Valid Boomerang | Easy | google | |
| Largest Time for Given Digits | Medium | google
liveramp | |
| Minimum Health to Beat Game | Medium | | |
| Next Greater Element 2 | Medium | amazon
bloomberg
facebook
google
microsoft
oracle
yahoo | |
| Find the Winner of an Array Game | Medium | | |
| Backspace String Compare | Easy | amazon
atlassian
facebook
google
microsoft
oracle
uber | |
| 132 Pattern | Medium | amazon
facebook
google
oracle | |
| Decoded String at Index | Medium | national-instruments | |
| Find the Difference | Easy | adobe
amazon
google | |
| Range Addition | Medium | google | |
| Valid Perfect Square | Easy | amazon
facebook
google
linkedin
microsoft | |
| Nested List Weight Sum 2 | Medium | didi
facebook
linkedin | |
| Design Hit Counter | Medium | affirm
amazon
apple
atlassian
bloomberg
bookingcom
dropbox
google
indeed
linkedin
microsoft
netflix
oracle
pinterest
quip
snapchat
uber
visa
yahoo
zillow | |
| Rearrange String k Distance Apart | Hard | amazon
ebay
facebook
google
microsoft | |
| Reorganize String | Medium | amazon
apple
ebay
facebook
google
microsoft
oracle
qualtrics
tesla
twitch
twitter
uber
ibm
flexport | |
| Binary Tree Bottom View | Medium | yelp | |
| Find Vertical Sum in binary Tree | Medium | | |
| 01 Matrix | Medium | amazon
apple
google
uber | |
| Flatten Nested List Iterator | Medium | airbnb
amazon
apple
atlassian
bloomberg
ebay
facebook
google
linkedin
lyft
microsoft
oracle
pinterest
snapchat
splunk
twitter
uber
vmware | |
| Smallest Rectangle Enclosing Black Pixels | Hard | google | |
| Unique Word Abbreviation | Medium | google | |