| Vertical Order Traversal of a Binary Tree Problem |
Hard
|
adobe
amazon
bloomberg
databricks
facebook
google
linkedin
microsoft
reddit
samsung
|
|
| Find Duplicate File in System Problem |
Medium
|
amazon
apple
dropbox
facebook
google
microsoft
oracle
vmware
|
|
| N-ary Tree Level Order Traversal |
Medium
|
amazon
|
|
| N-ary Tree Postorder Traversal Problem |
Easy
|
amazon
|
|
| Reverse String 2 Problem |
Easy
|
amazon
google
microsoft
|
|
| Evaluate Division |
Medium
|
adobe
amazon
bloomberg
facebook
google
microsoft
uber
|
|
| Integer Replacement |
Medium
|
amazon
baidu
bloomberg
google
microsoft
|
|
| Longest Substring with At Least K Repeating Characters Problem |
Medium
|
adobe
amazon
baidu
bloomberg
bytedance
facebook
google
uber
|
|
| Minimum Time Difference Problem |
Medium
|
amazon
palantir-technologies
|
|
| Orderly Queue |
Hard
|
amazon
|
|
| Online Stock Span Problem |
Medium
|
amazon
google
microsoft
|
|
| Most Frequent Subtree Sum |
Medium
|
amazon
apple
|
|
| Peak Index in a Mountain Array |
Medium
|
amazon
bloomberg
facebook
google
microsoft
quora
uber
|
|
| N-Queens 2 - Count number of distinct solutions |
Hard
|
amazon
zenefits
|
|
| Longest Univalue Path |
Medium
|
amazon
apple
google
|
|
| Univalued Binary Tree |
Easy
|
amazon
box
google
oracle
twilio
|
|
| Minimum Moves to Equal Array Elements |
Medium
|
amazon
apple
coursera
drawbridge
indeed
|
|
| Next Greater Element 2 |
Medium
|
amazon
bloomberg
facebook
google
microsoft
oracle
yahoo
|
|
| Backspace String Compare |
Easy
|
amazon
atlassian
facebook
google
microsoft
oracle
uber
|
|
| 132 Pattern Problem |
Medium
|
amazon
facebook
google
oracle
|
|
| Find the Difference Problem |
Easy
|
adobe
amazon
google
|
|
| Valid Perfect Square Problem |
Easy
|
amazon
facebook
google
linkedin
microsoft
|
|
| 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
|
|
| Managers with at Least 5 Direct Reports Problem |
Medium
|
amazon
bloomberg
|
|
| Actors and Directors Who Cooperated At Least Three Times Problem |
Easy
|
amazon
|
|
| Customer Placing the Largest Number of Orders Problem |
Easy
|
amazon
twitter
|
|
| Reorganize String Problem |
Medium
|
amazon
apple
ebay
facebook
google
microsoft
oracle
qualtrics
tesla
twitch
twitter
uber
ibm
|
|
| 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
|
|
| Shortest Word Distance 2 |
Medium
|
amazon
ebay
linkedin
uber
|
|
| Shortest Word Distance 1 |
Easy
|
amazon
google
linkedin
microsoft
oracle
paypal
uber
vmware
|
|
| Android Unlock Patterns Problem |
Medium
|
amazon
apple
bytedance
google
microsoft
uber
|
|
| Intersection of Two Arrays 2 - Duplicates allowed |
Easy
|
amazon
apple
bloomberg
bytedance
databricks
facebook
google
linkedin
microsoft
oracle
salesforce
uber
yandex
|
|
| Intersection of Two Arrays 1 - Unique Elements |
Easy
|
amazon
apple
bloomberg
bytedance
facebook
google
indeed
jpmorgan
linkedin
lyft
microsoft
oracle
two-sigma
uber
yelp
|
|
| Design Tic-Tac-Toe Problem |
Medium
|
amazon
apple
bloomberg
doordash
facebook
google
microsoft
salesforce
triplebyte
uber
|
|
| Longest Substring with At Most K Distinct Characters Problem |
Medium
|
amazon
appdynamics
bloomberg
citadel
coupang
facebook
google
microsoft
oracle
snapchat
uber
wish
|
|
| Nested List Weight Sum |
Medium
|
amazon
cloudera
facebook
linkedin
uber
|
|
| Largest Binary Search Tree BST Subtree |
Medium
|
amazon
apple
facebook
google
lyft
microsoft
|
|
| House Robber 3 - Houses in Binary Tree |
Medium
|
amazon
facebook
google
uber
|
|
| Minimum Height Trees |
Medium
|
amazon
apple
bloomberg
facebook
google
snapchat
|
|
| Remove Duplicate Letters Problem |
Medium
|
adobe
amazon
apple
bytedance
facebook
google
microsoft
nutanix
yahoo
|
|
| Burst Balloons |
Hard
|
adobe
amazon
facebook
google
samsung
snapchat
|
|
| Binary Tree Longest Consecutive Sequence Problem |
Medium
|
amazon
facebook
google
uber
|
|
| Longest Consecutive Sequence |
Medium
|
adobe
amazon
apple
bloomberg
facebook
google
microsoft
nutanix
oracle
paypal
spotify
uber
wish
|
|
| Find the Celebrity Problem |
Medium
|
amazon
apple
facebook
google
linkedin
microsoft
palantir-technologies
pinterest
square
uber
vmware
|
|
| Group Shifted Strings |
Medium
|
amazon
facebook
google
uber
|
|
| Delete Duplicate Emails Problem |
Easy
|
amazon
|
|
| Department Highest Salary Problem |
Medium
|
amazon
apple
oracle
wayfair
|
|
| Second Highest Salary Problem |
Medium
|
adobe
amazon
apple
bloomberg
ebay
facebook
google
microsoft
yahoo
|
|