| Construct Quad Tree |
Medium
|
amazon
apple
google
uber
|
|
| Design Snake Game |
Medium
|
amazon
apple
bloomberg
facebook
google
salesforce
uber
zillow
|
|
| Find K Pairs with Smallest Sums |
Medium
|
amazon
apple
facebook
google
linkedin
microsoft
uber
|
|
| 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
|
|
| Insert Delete Search and GetRandom in Constant Time 1 - Dupes not allowed |
Medium
|
adobe
affirm
amazon
appdynamics
apple
bloomberg
databricks
facebook
flipkart
goldman-sachs
google
indeed
linkedin
microsoft
oracle
pinterest
pocket-gems
pure-storage
quora
salesforce
twilio
twitter
two-sigma
uber
visa
vmware
yandex
yelp
|
|
| Insert Delete Search and GetRandom in Constant Time 2 - Duplicates allowed |
Hard
|
affirm
amazon
apple
databricks
facebook
google
linkedin
microsoft
uber
yelp
|
|
| Integer Break |
Medium
|
adobe
apple
google
|
|
| Logger Rate Limiter |
Easy
|
amazon
apple
atlassian
bloomberg
google
linkedin
microsoft
uber
|
|
| Longest Increasing Path in a Matrix |
Hard
|
adobe
amazon
apple
bloomberg
bytedance
facebook
google
microsoft
snapchat
uber
|
|
| Maximum Frequency Stack |
Hard
|
amazon
apple
bloomberg
google
microsoft
salesforce
uber
|
|
| New 21 Game |
Medium
|
apple
google
uber
|
|
| Number of Digit One |
Hard
|
amazon
apple
|
|
| Queue Reconstruction by Height |
Medium
|
amazon
apple
bloomberg
bytedance
facebook
google
microsoft
|
|
| Random Pick with Weight |
Medium
|
amazon
apple
atlassian
doordash
facebook
google
linkedin
microsoft
rubrik
tripadvisor
twitter
two-sigma
uber
wish
yelp
|
|
| Reorder Data in Log Files |
Medium
|
amazon
apple
audible
|
|
| Shuffle an Array |
Medium
|
amazon
apple
bloomberg
cisco
facebook
google
linkedin
microsoft
salesforce
tripadvisor
two-sigma
yahoo
|
|
| Smallest Range Covering Elements from K Lists |
Hard
|
amazon
apple
facebook
google
lyft
microsoft
pinterest
snapchat
|
|
| Sort Array By Parity |
Easy
|
amazon
apple
cisco
facebook
google
microsoft
oracle
vmware
|
|
| Walls and Gates |
Medium
|
amazon
apple
bloomberg
bytedance
facebook
google
microsoft
spotify
uber
|
|
| Collatz Sequence |
Easy
|
apple
|
|
| Find Largest Value in Each Tree Row |
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
|
|
| Delete in a Binary Search Tree |
Medium
|
amazon
apple
bloomberg
cisco
facebook
google
linkedin
microsoft
oracle
uber
yahoo
|
|
| Find K Closest Elements |
Medium
|
amazon
apple
bloomberg
ebay
facebook
google
microsoft
snapchat
uber
|
|
| K closest Points to Origin |
Medium
|
amazon
apple
asana
ebay
expedia
facebook
goldman-sachs
google
linkedin
microsoft
oracle
paypal
uber
visa
yahoo
|
|
| Non-overlapping Intervals |
Medium
|
amazon
apple
bloomberg
facebook
google
microsoft
stripe
|
|
| 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
|
|
| Power of Three |
Easy
|
apple
goldman-sachs
google
hulu
|
|
| Sum of Two Integers |
Medium
|
amazon
apple
facebook
google
hulu
|
|
| 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
|
|
| Boundary of Binary Tree |
Medium
|
adobe
amazon
apple
audible
ebay
google
microsoft
oracle
|
|
| Jewels and Stones |
Easy
|
adobe
amazon
apple
facebook
google
yahoo
|
|
| Minimum Knight Moves |
Medium
|
amazon
apple
facebook
google
indeed
microsoft
oracle
|
|
| N-Repeated Element in Size 2N Array |
Easy
|
akamai
apple
|
|
| Number of Distinct Islands |
Medium
|
amazon
apple
bloomberg
facebook
google
lyft
microsoft
oracle
uber
|
|
| Online Election |
Medium
|
apple
google
|
|
| Range Sum of BST |
Easy
|
amazon
apple
facebook
google
microsoft
oracle
|
|
| Shortest Distance to a Character |
Easy
|
apple
atlassian
bloomberg
facebook
google
|
|
| To Lower Case |
Easy
|
adobe
apple
google
|
|
| Array Nesting |
Medium
|
apple
bloomberg
|
|
| Array Partition |
Easy
|
adobe
amazon
apple
|
|
| Contiguous Array |
Medium
|
adobe
amazon
apple
facebook
google
microsoft
quora
robinhood
vmware
|
|
| Defanging an IP Address |
Easy
|
adobe
amazon
apple
facebook
google
yahoo
|
|
| Exclusive Time of Functions |
Medium
|
amazon
apple
facebook
google
linkedin
microsoft
oracle
uber
|
|
| Image Smoother |
Easy
|
amazon
apple
|
|
| Interval List Intersections |
Medium
|
amazon
apple
bloomberg
cruise-automation
doordash
facebook
google
oracle
pinterest
snapchat
uber
|
|
| Longest Continuous Increasing Subsequence |
Easy
|
amazon
apple
facebook
google
microsoft
|
|