| Valid Tic-Tac-Toe State Problem |
Medium
|
amazon
facebook
google
microsoft
oracle
|
|
| Unique Paths in Grid 3 - Count all paths moving in 4 directions with obstacles and custom start and end |
Hard
|
amazon
google
limebike
|
|
| Majority Element - Boyer–Moore majority vote algorithm |
Easy
|
adobe
amazon
apple
google
microsoft
oracle
snapchat
tencent
twitter
yahoo
zenefits
|
|
| Increasing Triplet Subsequence |
Medium
|
amazon
bloomberg
facebook
google
uber
yahoo
|
|
| Reverse Vowels of a String |
Easy
|
amazon
apple
facebook
google
|
|
| Summary Ranges |
Easy
|
amazon
bloomberg
capital-one
facebook
google
indeed
microsoft
uber
yandex
|
|
| Game of Life Problem |
Medium
|
amazon
bloomberg
dropbox
facebook
goldman-sachs
google
microsoft
opendoor
oracle
reddit
snapchat
two-sigma
uber
zillow
|
|
| Split Array Largest Sum Problem |
Hard
|
amazon
baidu
facebook
google
|
|
| Capacity To Ship Packages Within D Days Problem |
Medium
|
amazon
apple
google
uber
|
|
| LFU Cache Problem |
Hard
|
adobe
alibaba
amazon
apple
bloomberg
goldman-sachs
google
linkedin
microsoft
salesforce
snapchat
uber
vmware
|
|
| Design LRU Cache |
Medium
|
adobe
alibaba
amazon
apple
asana
baidu
bloomberg
bytedance
cisco
citadel
cloudera
cruise-automation
docusign
doordash
dropbox
ebay
expedia
facebook
godaddy
goldman-sachs
google
groupon
hbo
intuit
jpmorgan
linkedin
lyft
microsoft
morgan-stanley
nutanix
nvidia
oracle
palantir-technologies
paypal
pinterest
roblox
salesforce
sap
snapchat
splunk
spotify
tesla
tripadvisor
twilio
twitch
twitter
two-sigma
uber
visa
vmware
wish
yahoo
yandex
zenefits
zillow
|
|
| Cheapest Flights Within K Stops Problem |
Medium
|
airbnb
amazon
bloomberg
ebay
facebook
google
microsoft
|
|
| Insert Interval |
Medium
|
adobe
amazon
apple
dataminr
facebook
google
linkedin
microsoft
oracle
tableau
twitter
uber
|
|
| Symmetric Binary Tree |
Easy
|
adobe
alibaba
amazon
apple
atlassian
audible
bloomberg
facebook
google
linkedin
microsoft
oracle
salesforce
sap
tripadvisor
twitter
uber
visa
vmware
yandex
|
|
| Gas Station |
Medium
|
amazon
apple
bloomberg
deshaw
expedia
google
ibm
microsoft
paypal
|
|
| Single Number 1 - All elements except one occur twice |
Easy
|
adobe
airbnb
amazon
apple
atlassian
bloomberg
facebook
google
microsoft
oracle
palantir-technologies
tencent
|
|
| Reverse String |
Easy
|
adobe
amazon
apple
bloomberg
cisco
ebay
facebook
godaddy
goldman-sachs
google
microsoft
oracle
paypal
servicenow
snapchat
uber
|
|
| Remove duplicates from Sorted List 1 |
Easy
|
adobe
amazon
apple
bytedance
ebay
facebook
google
microsoft
salesforce
|
|
| 2Sum 2 – Input array is sorted |
Medium
|
amazon
apple
bloomberg
bytedance
expedia
facebook
goldman-sachs
google
microsoft
paypal
pure-storage
|
|
| Best Time To Buy And Sell Stock 1 - only one transaction |
Easy
|
adobe
akuna-capital
alibaba
amazon
apple
atlassian
audible
blackrock
bloomberg
bytedance
cisco
citadel
deutsche-bank
doordash
expedia
facebook
goldman-sachs
google
grab
groupon
intel
jpmorgan
linkedin
lyft
microsoft
morgan-stanley
oracle
paypal
redfin
sap
snapchat
tableau
tencent
uber
visa
vmware
yahoo
zillow
|
|
| Merge Two Sorted Arrays |
Easy
|
adobe
amazon
apple
baidu
bloomberg
bytedance
cisco
ebay
expedia
facebook
goldman-sachs
google
ibm
indeed
linkedin
lyft
microsoft
netflix
oracle
quip
tableau
uber
vmware
yahoo
yandex
|
|
| Move Zeroes at the end of array |
Easy
|
adobe
amazon
apple
bloomberg
cohesity
dell
ebay
facebook
goldman-sachs
google
lyft
microsoft
nutanix
oracle
paypal
qualcomm
sap
tesla
uber
yahoo
yandex
zillow
|
|
| Squares of a Sorted array Problem |
Easy
|
adobe
amazon
apple
bloomberg
bytedance
ebay
electronic-arts
facebook
google
jane-street
microsoft
nutanix
oracle
paypal
splunk
twitch
uber
vmware
|
|
| Two Sum Less Than K |
Easy
|
amazon
google
|
|
| Valid Palindrome |
Easy
|
adobe
amazon
apple
bloomberg
cisco
ebay
facebook
google
linkedin
microsoft
oracle
spotify
uber
wayfair
wish
yandex
zenefits
|
|
| Remove duplicates from Sorted Array 1 |
Easy
|
adobe
amazon
apple
bloomberg
cisco
cohesity
ebay
facebook
google
hulu
microsoft
oracle
servicenow
uber
vmware
|
|
| Remove Element |
Easy
|
amazon
bloomberg
google
microsoft
|
|
| Reverse Linked List |
Easy
|
adobe
alibaba
amazon
apple
bloomberg
bytedance
cisco
citrix
docusign
ebay
electronic-arts
facebook
factset
goldman-sachs
google
intel
mathworks
microsoft
nvidia
oracle
paypal
qualcomm
snapchat
spotify
tencent
tripadvisor
twitter
uber
visa
vmware
yahoo
yandex
yelp
zenefits
|
|
| Permutations of Array 1 |
Medium
|
adobe
amazon
apple
atlassian
bloomberg
bytedance
cisco
ebay
facebook
garena
godaddy
goldman-sachs
google
linkedin
microsoft
netease
oracle
paypal
salesforce
sap
uber
vmware
yahoo
|
|
| Word Pattern 1 Problem |
Easy
|
amazon
capital-one
dropbox
facebook
google
microsoft
uber
|
|
| Evaluation function for Tic-Tac-Toe |
Easy
|
amazon
apple
facebook
zoho
|
|
| Integer To Roman Problem |
Medium
|
adobe
amazon
apple
blackrock
bloomberg
evernote
facebook
google
linkedin
microsoft
opendoor
oracle
paypal
salesforce
twitter
yahoo
|
|
| Roman To Integer Problem |
Easy
|
adobe
amazon
apple
bloomberg
facebook
goldman-sachs
google
linkedin
microsoft
oracle
qualtrics
uber
yahoo
zillow
|
|
| String Compression Problem |
Medium
|
akuna-capital
amazon
apple
bloomberg
ebay
expedia
facebook
godaddy
goldman-sachs
google
lyft
microsoft
redfin
snapchat
spotify
wayfair
yandex
yelp
zillow
|
|
| Remove Nth Node From End of List |
Medium
|
adobe
amazon
apple
bloomberg
bytedance
cisco
facebook
goldman-sachs
google
microsoft
oracle
vmware
yandex
|
|
| Valid Anagram |
Easy
|
amazon
apple
bloomberg
cisco
docusign
expedia
facebook
goldman-sachs
google
microsoft
morgan-stanley
oracle
paypal
servicenow
snapchat
uber
yahoo
yelp
zulily
|
|
| Letter Combinations of a Phone Number Problem |
Medium
|
amazon
apple
atlassian
bloomberg
cisco
dropbox
ebay
facebook
goldman-sachs
google
jpmorgan
lyft
microsoft
morgan-stanley
nutanix
oracle
quip
roblox
salesforce
servicenow
square
twilio
uber
vmware
yahoo
yelp
|
|
| 4Sum |
Medium
|
adobe
amazon
apple
bloomberg
facebook
google
microsoft
samsung
yahoo
|
|
| Regular Expression Matching Problem |
Hard
|
adobe
airbnb
alibaba
amazon
apple
bloomberg
bytedance
coursera
databricks
ebay
facebook
flipkart
google
houzz
lyft
microsoft
oracle
palantir-technologies
pocket-gems
twitter
uber
zulily
|
|
| Wildcard Matching Problem |
Hard
|
adobe
amazon
bloomberg
bytedance
coursera
cruise-automation
facebook
goldman-sachs
google
microsoft
oracle
snapchat
twitter
two-sigma
|
|
| Add Two Numbers represented as Linked List in Reversed Order |
Medium
|
adobe
aetion
airbnb
alibaba
amazon
apple
baidu
bloomberg
bytedance
capital-one
cisco
dell
docusign
ebay
facebook
flipkart
google
grab
huawei
ibm
intel
lyft
mathworks
microsoft
nvidia
oracle
paypal
qualcomm
redfin
salesforce
servicenow
uber
vmware
wish
yahoo
yandex
zoho
|
|
| UTF-8 Validation |
Medium
|
amazon
apple
facebook
google
palantir-technologies
|
|
| Construct String from Binary Tree Problem |
Medium
|
amazon
|
|
| Two Sum 4 - Input is Binary Search Tree |
Easy
|
amazon
facebook
google
microsoft
samsung
servicenow
snapchat
|
|
| Binary Search Tree BST Inorder Iterator |
Medium
|
alibaba
amazon
apple
atlassian
bloomberg
bytedance
cisco
cloudera
ebay
facebook
google
linkedin
microsoft
oracle
qualtrics
redfin
splunk
uber
|
|
| Ransom Note Problem |
Easy
|
amazon
apple
microsoft
spotify
uber
|
|
| Shift 2D Grid |
Easy
|
amazon
facebook
|
|
| Next Greater Element 1 |
Easy
|
amazon
bloomberg
facebook
google
microsoft
oracle
twitter
|
|
| Baseball Game Problem |
Easy
|
amazon
google
|
|
| Single Number 3 - All elements except two occur twice |
Medium
|
amazon
apple
facebook
yahoo
|
|