| Partition List |
Medium
|
amazon
apple
linkedin
microsoft
|
|
| Peeking Iterator |
Medium
|
amazon
apple
atlassian
ebay
facebook
google
microsoft
oracle
yahoo
|
|
| Range Sum Query 2D - Immutable |
Medium
|
amazon
apple
cruise-automation
facebook
google
houzz
lyft
microsoft
vmware
|
|
| Reconstruct Itinerary |
Hard
|
amazon
apple
bloomberg
citadel
facebook
goldman-sachs
google
microsoft
qualtrics
snapchat
square
twilio
uber
yandex
yelp
|
|
| Rectangle Area - Total area of two rectangles |
Medium
|
apple
facebook
microsoft
nvidia
juniper
|
|
| Remove Invalid Parentheses Problem |
Hard
|
amazon
apple
bloomberg
facebook
google
houzz
ponyai
postmates
uber
|
|
| Remove Outermost Parentheses |
Easy
|
apple
facebook
google
|
|
| Reverse Bits |
Easy
|
airbnb
amazon
apple
facebook
google
samsung
tencent
|
|
| Reverse Words in a String 3 |
Easy
|
amazon
apple
bloomberg
microsoft
paypal
salesforce
snapchat
yahoo
zappos
|
|
| Rotate n x n matrix by 90 degrees |
Medium
|
adobe
akuna-capital
amazon
apple
bloomberg
cisco
facebook
google
groupon
houzz
lyft
microsoft
nvidia
palantir
palantir-technologies
quora
salesforce
uber
wish
yandex
|
|
| Scramble String |
Hard
|
apple
google
|
|
| Serialize and Deserialize Binary Tree |
Hard
|
amazon
apple
bloomberg
citadel
ebay
expedia
facebook
google
groupon
indeed
linkedin
microsoft
oracle
qualtrics
quora
salesforce
snapchat
tableau
uber
vmware
yahoo
|
|
| Spiral Matrix 1 - Return |
Medium
|
adobe
amazon
apple
bloomberg
bytedance
cisco
drawbridge
ebay
epic-systems
facebook
goldman-sachs
google
hulu
linkedin
microsoft
oracle
paypal
quip
robinhood
snapchat
uber
visa
|
|
| Square root of an integer |
Easy
|
amazon
apple
bloomberg
facebook
google
huawei
linkedin
lyft
microsoft
qualtrics
uber
wayfair
|
|
| Sudoku Solver |
Hard
|
adobe
amazon
apple
arista-networks
doordash
dropbox
expedia
facebook
google
microsoft
oracle
riot-games
roblox
snapchat
uber
vmware
wish
|
|
| Swap Nodes in Pairs |
Medium
|
adobe
amazon
apple
bloomberg
ebay
facebook
google
lyft
microsoft
oracle
sap
uber
|
|
| Unique BSTs 2 - Generate |
Medium
|
adobe
amazon
apple
facebook
microsoft
yahoo
|
|
| Valid Number |
Hard
|
adobe
amazon
apple
facebook
google
linkedin
microsoft
tripadvisor
|
|
| Valid Sudoku |
Medium
|
adobe
amazon
apple
bloomberg
cruise-automation
doordash
facebook
google
microsoft
oracle
pinterest
roblox
salesforce
snapchat
twitter
uber
vmware
|
|
| Validate Binary Search Tree |
Medium
|
adobe
amazon
apple
asana
atlassian
bloomberg
bytedance
capital-one
ebay
facebook
goldman-sachs
google
linkedin
mathworks
microsoft
oracle
salesforce
sap
tripadvisor
uber
visa
vmware
yahoo
yandex
|
|
| Word Break 2 - Construct a sentence |
Hard
|
amazon
apple
audible
bloomberg
bookingcom
dropbox
ebay
facebook
google
microsoft
oracle
pinterest
snapchat
twitter
uber
zillow
|
|
| Zigzag Iterator |
Medium
|
amazon
apple
cruise-automation
facebook
google
microsoft
yandex
|
|
| Implement Rand10() Using Rand7() |
Medium
|
apple
bloomberg
bytedance
linkedin
microsoft
|
|
| Largest Palindrome Product |
Hard
|
apple
yahoo
|
|
| Sliding Window Median |
Hard
|
amazon
apple
facebook
google
microsoft
snapchat
spotify
|
|
| Find in Mountain Array |
Hard
|
apple
google
|
|
| Most Common Word |
Easy
|
amazon
apple
google
microsoft
oracle
|
|
| Max Area of Island |
Medium
|
adobe
affirm
amazon
apple
bloomberg
bytedance
cruise-automation
doordash
facebook
google
intuit
mathworks
microsoft
oracle
palantir-technologies
qualtrics
twitch
uber
wish
zillow
|
|
| Find and Replace Pattern |
Medium
|
amazon
apple
google
|
|
| Sum of Subarray Minimums |
Medium
|
apple
hulu
microsoft
|
|
| Subarray Sum Equals K |
Medium
|
adobe
amazon
apple
bloomberg
ebay
expedia
facebook
goldman-sachs
google
indeed
linkedin
microsoft
oracle
quora
snapchat
twilio
uber
wish
yahoo
yandex
|
|
| Possible Bipartition |
Medium
|
apple
facebook
google
microsoft
|
|
| Snapshot Array |
Medium
|
amazon
apple
ebay
facebook
google
snapchat
uber
|
|
| Island Perimeter |
Easy
|
amazon
apple
bloomberg
facebook
google
microsoft
|
|
| Find All Duplicates in an Array |
Medium
|
amazon
apple
bloomberg
facebook
google
lyft
microsoft
pocket-gems
|
|
| Flatten a Multilevel Doubly Linked List |
Medium
|
amazon
apple
bloomberg
facebook
google
microsoft
uber
|
|
| Add Strings |
Easy
|
adobe
airbnb
amazon
apple
bloomberg
bytedance
facebook
google
microsoft
nvidia
oracle
snapchat
square
|
|
| Trapping Rain Water 2 |
Hard
|
amazon
apple
bytedance
facebook
google
microsoft
twitter
|
|
| Binary Watch |
Easy
|
apple
google
|
|
| Daily Temperatures |
Medium
|
adobe
amazon
apple
bloomberg
cisco
expedia
facebook
goldman-sachs
google
linkedin
microsoft
nvidia
uber
zillow
|
|
| Maximum Subarray Sum |
Medium
|
adobe
alibaba
amazon
apple
asana
atlassian
bloomberg
bytedance
capital-one
cisco
citadel
ebay
expedia
facebook
goldman-sachs
google
ibm
intel
jpmorgan
linkedin
microsoft
morgan-stanley
nvidia
oracle
palantir-technologies
paypal
qualcomm
salesforce
sap
two-sigma
uber
visa
wayfair
yahoo
zillow
|
|
| Find the Index of the First Occurrence in a String |
Easy
|
adobe
amazon
apple
bloomberg
citadel
dropbox
ebay
facebook
google
microsoft
oracle
paypal
pocket-gems
vmware
yahoo
yandex
|
|
| Time Based Key-Value Store |
Medium
|
amazon
apple
atlassian
databricks
facebook
flexport
google
linkedin
lyft
microsoft
netflix
oracle
square
stripe
sumologic
twitter
uber
vmware
zillow
|
|
| Sparse Matrix Multiplication |
Medium
|
amazon
apple
bloomberg
facebook
google
linkedin
microsoft
snapchat
uber
|
|
| Find Duplicate File in System |
Medium
|
amazon
apple
dropbox
facebook
google
microsoft
oracle
vmware
|
|
| Battleships in a Board |
Medium
|
amazon
apple
facebook
google
microsoft
|
|
| Perfect Rectangle |
Hard
|
apple
google
uber
|
|
| Most Frequent Subtree Sum |
Medium
|
amazon
apple
|
|
| Toeplitz Matrix |
Easy
|
apple
facebook
google
|
|
| Longest Univalue Path |
Medium
|
amazon
apple
google
|
|