| 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
|
|
| Range Sum Query 2D - Mutable |
Medium
|
facebook
google
microsoft
|
|
| Super Egg Drop |
Hard
|
facebook
goldman-sachs
google
microsoft
|
|
| The k-th Lexicographical String of All Happy Strings of Length n |
Medium
|
microsoft
|
|
| Letter Tile Possibilities |
Medium
|
google
microsoft
|
|
| Find All Occurrences of the Pattern in the String |
Medium
|
microsoft
|
|
| Divide array into two subsets with minimum difference |
Hard
|
microsoft
|
|
| Describe and give an example of Ad-hoc, Parametric and Subtype polymorphism |
Medium
|
microsoft
|
|
| Implement 3 stacks in 1 list |
Hard
|
microsoft
|
|
| Check if target word exists in matrix horizontally or vertically |
Easy
|
microsoft
|
|
| Expected number of rounds to reach one remaining coin |
Easy
|
microsoft
|
|
| Smallest set to cover all intervals |
Medium
|
google
microsoft
|
|
| Find Largest Value in Each Tree Row Problem |
Medium
|
amazon
apple
facebook
linkedin
microsoft
|
|
| 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
|
|
| Construct Binary Search Tree BST from Preorder Traversal |
Medium
|
amazon
facebook
microsoft
oracle
|
|
| Count Good Nodes in Binary Tree |
Medium
|
microsoft
|
|
| Find Bottom Left Tree Value |
Medium
|
bloomberg
microsoft
|
|
| K closest Points to Origin |
Medium
|
amazon
apple
asana
ebay
expedia
facebook
goldman-sachs
google
linkedin
microsoft
oracle
paypal
uber
visa
yahoo
|
|
| Maximum Binary Tree |
Medium
|
amazon
facebook
google
microsoft
|
|
| Non-overlapping Intervals |
Medium
|
amazon
apple
bloomberg
facebook
google
microsoft
stripe
|
|
| Number of Connected Components in an Undirected Graph |
Medium
|
amazon
facebook
google
linkedin
microsoft
twitter
|
|
| Pacific Atlantic Water Flow |
Medium
|
amazon
apple
bloomberg
facebook
google
microsoft
oracle
|
|
| Palindromic Substrings |
Medium
|
adobe
amazon
apple
atlassian
citadel
coursera
facebook
goldman-sachs
google
linkedin
mathworks
microsoft
pure-storage
roblox
twitter
uber
vmware
|
|
| Range Sum Query - Immutable |
Easy
|
amazon
bloomberg
facebook
goldman-sachs
google
microsoft
palantir-technologies
|
|
| Task Scheduler |
Medium
|
amazon
apple
bloomberg
facebook
google
microsoft
nutanix
oracle
pinterest
uber
vmware
|
|
| Top K Frequent Elements |
Medium
|
amazon
apple
bloomberg
bytedance
ebay
facebook
goldman-sachs
google
hulu
linkedin
microsoft
oracle
pocket-gems
snapchat
spotify
uber
vmware
yahoo
yelp
|
|
| Contiguous Array |
Medium
|
adobe
amazon
apple
facebook
google
microsoft
quora
robinhood
vmware
|
|
| 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
|
|
| 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
|
|
| Sliding Puzzle Problem |
Hard
|
airbnb
amazon
facebook
google
microsoft
uber
|
|
| Diagonal Traverse Problem |
Medium
|
amazon
apple
ebay
facebook
google
microsoft
quora
splunk
|
|
| Maximum Swap Problem |
Medium
|
amazon
apple
bytedance
facebook
microsoft
uber
|
|
| Smallest Range Covering Elements from K Lists Problem |
Hard
|
amazon
apple
facebook
google
lyft
microsoft
pinterest
snapchat
|
|
| Design a Stack With Increment Operation Problem |
Medium
|
microsoft
|
|
| Uncommon Words from Two Sentences Problem |
Easy
|
amazon
expedia
facebook
microsoft
|
|
| Find the Longest Substring Containing Vowels in Even Counts Problem |
Medium
|
microsoft
|
|
| Read N characters given read7 |
Easy
|
microsoft
|
|
| Water Bottles Problem |
Easy
|
microsoft
|
|
| Merge Nodes in Between Zeros Problem |
Medium
|
microsoft
|
|
| Accounts Merge |
Medium
|
amazon
apple
bloomberg
facebook
google
houzz
linkedin
microsoft
oracle
|
|
| Nth Number with sum of digits as 10 |
Easy
|
microsoft
|
|