| Statistics from a Large Sample | Medium | microsoft |  | 
| Tag Validator | Hard | google
microsoft
uber |  | 
| Web Crawler | Medium | amazon
dropbox
facebook
microsoft
oracle |  | 
| Binary Tree Coloring Game | Medium | bloomberg
google
microsoft |  | 
| Cinema Seat Allocation | Medium | microsoft |  | 
| Contiguous Array | Medium | adobe
amazon
apple
facebook
google
microsoft
quora
robinhood
vmware |  | 
| Count Unique Characters of All Substrings of a Given String | Hard | forusall
microsoft
twitch |  | 
| Day of the Week | Easy | microsoft
united-health-group |  | 
| Design Linked List | Medium | amazon
microsoft
oracle |  | 
| Equal Rational Numbers | Hard | microsoft |  | 
| Exclusive Time of Functions | Medium | amazon
apple
facebook
google
linkedin
microsoft
oracle
uber |  | 
| Flipping an Image | Easy | facebook
google
microsoft |  | 
| Guess the Word | Hard | airbnb
amazon
facebook
google
microsoft |  | 
| Longest Continuous Increasing Subsequence | Easy | amazon
apple
facebook
google
microsoft |  | 
| Longest Mountain in Array | Medium | cohesity
google
microsoft
wish |  | 
| Minesweeper | Medium | amazon
bloomberg
cruise-automation
facebook
google
liveramp
microsoft
oracle
uber |  | 
| Minimum Area Rectangle | Medium | amazon
facebook
goldman-sachs
google
microsoft
nvidia |  | 
| Number of Times Binary String Is Prefix-Aligned | Medium | amazon
microsoft |  | 
| Pancake Sorting | Medium | amazon
facebook
microsoft
square
uber |  | 
| Partition Array Into Three Parts With Equal Sum | Easy | amazon
microsoft |  | 
| Path In Zigzag Labelled Binary Tree | Medium | amazon
bloomberg
microsoft |  | 
| Print Words Vertically | Medium | microsoft |  | 
| Reformat The String | Easy | microsoft |  | 
| Reveal Cards In Increasing Order | Medium | google
microsoft |  | 
| Shuffle String | Easy | facebook
microsoft |  | 
| Valid Triangle Number | Medium | amazon
bloomberg
expedia
facebook
linkedin
microsoft
uber |  | 
| Delete N Nodes After M Nodes of a Linked List | Easy | microsoft |  | 
| Find the Start and End Number of Continuous Ranges | Medium | microsoft |  | 
| Get the Second Most Recent Activity | Hard | microsoft |  | 
| Palindrome Removal | Hard | microsoft |  | 
| Meeting Scheduler | Medium | amazon
apple
doordash
google
microsoft
paypal
pramp
uber |  | 
| Design Bounded Blocking Queue | Medium | amazon
bloomberg
cloudera
google
linkedin
microsoft
oracle
uber |  | 
| Find Smallest Common Element in All Rows | Medium | amazon
microsoft |  | 
| Search in a Sorted Array of Unknown Size | Medium | amazon
ebay
google
microsoft |  | 
| K Empty Slots | Hard | amazon
google
microsoft |  | 
| Shortest Distance in a Plane | Medium | microsoft |  | 
| Is Graph Bipartite | Medium | amazon
dropbox
ebay
facebook
google
linkedin
liveramp
microsoft
uber |  | 
| 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 |  | 
| Target Sum | Medium | facebook
google
microsoft |  | 
| The Maze 1 - Can the Ball Stop at Destination | Medium | amazon
apple
facebook
google
microsoft
twitter
uber |  | 
| 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 |  | 
| Employee Free Time | Hard | airbnb
amazon
bloomberg
coupang
doordash
facebook
google
intuit
microsoft
pinterest
postmates
uber
wayfair |  | 
| Sliding Puzzle | Hard | airbnb
amazon
facebook
google
microsoft
uber |  | 
| Diagonal Traverse | Medium | amazon
apple
ebay
facebook
google
microsoft
quora
splunk |  | 
| Maximum Swap | Medium | amazon
apple
bytedance
facebook
microsoft
uber |  | 
| Design a Stack With Increment Operation | Medium | microsoft |  | 
| Uncommon Words from Two Sentences | Easy | amazon
expedia
facebook
microsoft |  |