| Handshakes That Don't Cross |
Hard
|
amazon
|
|
| Students With Invalid Departments |
Easy
|
amazon
|
|
| Tree Diameter |
Medium
|
amazon
facebook
google
|
|
| Meeting Scheduler |
Medium
|
amazon
apple
doordash
google
microsoft
paypal
pramp
uber
|
|
| Stepping Numbers |
Medium
|
amazon
epic-systems
|
|
| Two Sum BSTs |
Medium
|
amazon
|
|
| Analyze User Website Visit Pattern |
Medium
|
amazon
|
|
| Armstrong Number |
Easy
|
amazon
|
|
| Connecting Cities With Minimum Cost |
Medium
|
amazon
uber
|
|
| Design Bounded Blocking Queue |
Medium
|
amazon
bloomberg
cloudera
google
linkedin
microsoft
oracle
uber
|
|
| Design File System |
Medium
|
airbnb
amazon
|
|
| Diet Plan Performance |
Easy
|
amazon
|
|
| Find Smallest Common Element in All Rows |
Medium
|
amazon
microsoft
|
|
| Number of Days in a Month |
Easy
|
amazon
|
|
| Remove Vowels from a String |
Easy
|
amazon
|
|
| String Transforms Into Another String |
Hard
|
amazon
google
|
|
| All Paths from Source Lead to Destination |
Medium
|
amazon
google
|
|
| Campus Bikes |
Medium
|
amazon
bytedance
facebook
google
|
|
| Digit Count in Range |
Hard
|
amazon
|
|
| Find K-Length Substrings With No Repeated Characters |
Medium
|
amazon
|
|
| Index Pairs of a String |
Easy
|
amazon
|
|
| Missing Element in Sorted Array |
Medium
|
amazon
apple
bloomberg
facebook
google
lyft
|
|
| Split BST |
Medium
|
amazon
coupang
facebook
google
|
|
| Number of Distinct Islands II |
Hard
|
amazon
|
|
| Search in a Sorted Array of Unknown Size |
Medium
|
amazon
ebay
google
microsoft
|
|
| K Empty Slots |
Hard
|
amazon
google
microsoft
|
|
| Students Report By Geography |
Hard
|
amazon
|
|
| Design Compressed String Iterator |
Easy
|
amazon
google
|
|
| Design In-Memory File System |
Hard
|
airbnb
amazon
baidu
goldman-sachs
|
|
| Find Cumulative Salary of an Employee |
Hard
|
amazon
|
|
| Kill Process |
Medium
|
amazon
apple
bloomberg
google
|
|
| Binary Tree Longest Consecutive Sequence II |
Medium
|
amazon
apple
facebook
google
|
|
| Construct Binary Tree from String |
Medium
|
amazon
facebook
|
|
| Distance between two nodes in binary tree |
Medium
|
amazon
|
|
| Is Graph Bipartite |
Medium
|
amazon
dropbox
ebay
facebook
google
linkedin
liveramp
microsoft
uber
|
|
| Minimize Malware Spread |
Hard
|
amazon
bloomberg
dropbox
google
|
|
| Range Module |
Hard
|
amazon
coupang
google
linkedin
machine-zone
oracle
|
|
| Rectangle Overlap |
Easy
|
adobe
amazon
apple
bloomberg
goldman-sachs
google
mathworks
microsoft
oracle
|
|
| Reverse Pairs |
Hard
|
amazon
bytedance
google
microsoft
uber
|
|
| Robot Room Cleaner |
Hard
|
amazon
facebook
google
microsoft
|
|
| The Maze 1 |
Medium
|
amazon
apple
facebook
google
microsoft
twitter
uber
|
|
| The Maze 2 |
Medium
|
amazon
facebook
google
netease
oracle
|
|
| Binary Tree Path - All root to leaf paths |
Easy
|
adobe
amazon
apple
facebook
google
microsoft
|
|
| Closest Binary Search Tree Value |
Easy
|
amazon
bloomberg
facebook
google
linkedin
microsoft
snapchat
|
|
| Closest Binary Search Tree Value II |
Hard
|
amazon
facebook
forusall
google
linkedin
|
|
| Sliding Puzzle Problem |
Hard
|
airbnb
amazon
facebook
google
microsoft
uber
|
|
| Shortest Subarray with Sum at Least K Problem |
Hard
|
amazon
facebook
goldman-sachs
google
|
|
| Remove Sub-Folders from the Filesystem Problem |
Medium
|
amazon
facebook
google
|
|
| Diagonal Traverse Problem |
Medium
|
amazon
apple
ebay
facebook
google
microsoft
quora
splunk
|
|
| Maximum Swap Problem |
Medium
|
amazon
apple
bytedance
facebook
microsoft
uber
|
|