| Permutation of Array using given order |
Easy
|
twitter
|
|
| Alien Dictionary |
Hard
|
airbnb
amazon
apple
bloomberg
cohesity
doordash
facebook
flipkart
google
microsoft
pinterest
pocket-gems
snapchat
square
twitter
uber
vmware
|
|
| Binary Tree Pruning |
Medium
|
amazon
buffer-box
capital-one
google
hulu
twitter
|
|
| Number of Connected Components in an Undirected Graph |
Medium
|
amazon
facebook
google
linkedin
microsoft
twitter
|
|
| Palindromic Substrings |
Medium
|
adobe
amazon
apple
atlassian
citadel
coursera
facebook
goldman-sachs
google
linkedin
mathworks
microsoft
pure-storage
roblox
twitter
uber
vmware
|
|
| Design log Order records |
Easy
|
twitter
|
|
| Max Stack Problem |
Hard
|
amazon
bloomberg
facebook
google
linkedin
lyft
microsoft
pure-storage
snapchat
twitter
|
|
| Maximum Points on a Line |
Hard
|
amazon
apple
bloomberg
directi
google
inmobi
linkedin
microsoft
tripadvisor
twitter
uber
|
|
| Friend Words - One Edit Distance |
Medium
|
amazon
facebook
google
microsoft
snapchat
twitter
uber
|
|
| Binary Tree Path Sum - Maximum between any two nodes |
Hard
|
adobe
amazon
appdynamics
apple
baidu
bloomberg
bytedance
facebook
google
intuit
microsoft
twitter
uber
vmware
|
|
| Construct Binary Tree from Inorder and Postorder Traversal |
Medium
|
amazon
bloomberg
facebook
google
mathworks
microsoft
twitter
|
|
| Construct Binary Tree from Inorder and Preorder Traversal |
Medium
|
adobe
amazon
apple
bloomberg
bytedance
citadel
facebook
google
microsoft
oracle
square
twitter
yahoo
|
|
| Find Median from Data Stream |
Hard
|
adobe
amazon
apple
atlassian
bloomberg
bytedance
citadel
ebay
expedia
facebook
goldman-sachs
google
microsoft
netflix
oracle
pinterest
qualtrics
salesforce
snapchat
twitter
uber
vmware
yahoo
|
|
| Largest Rectangle in Histogram |
Hard
|
adobe
amazon
bloomberg
facebook
flipkart
google
microsoft
twitter
|
|
| Merge K Sorted Lists |
Hard
|
adobe
airbnb
alibaba
amazon
apple
atlassian
audible
bloomberg
box
bytedance
cisco
cohesity
cruise-automation
ebay
facebook
goldman-sachs
google
indeed
ixl
linkedin
lyft
mathworks
microsoft
nvidia
oracle
salesforce
sap
tableau
twitter
uber
vmware
wish
yahoo
yandex
zillow
|
|
| Strobogrammatic Number 2 - Generate for length n |
Medium
|
cisco
facebook
google
twitter
|
|
| Valid Sudoku Problem |
Medium
|
adobe
amazon
apple
bloomberg
cruise-automation
doordash
facebook
google
microsoft
oracle
pinterest
roblox
salesforce
snapchat
twitter
uber
vmware
|
|
| Word Break 2 - Construct a sentence |
Hard
|
amazon
apple
audible
bloomberg
bookingcom
dropbox
ebay
facebook
google
microsoft
oracle
pinterest
snapchat
twitter
uber
zillow
|
|
| Validate IP Address Problem |
Medium
|
amazon
cisco
facebook
google
microsoft
twitter
uber
|
|
| Binary Gap Problem |
Easy
|
ebay
twitter
|
|
| Design Skiplist Problem |
Hard
|
ebay
google
microsoft
pure-storage
twitter
|
|
| Number of Provinces |
Medium
|
adobe
amazon
atlassian
bloomberg
drawbridge
ebay
facebook
goldman-sachs
google
linkedin
microsoft
pocket-gems
salesforce
twitter
two-sigma
uber
|
|
| Trapping Rain Water 2 |
Hard
|
amazon
apple
bytedance
facebook
google
microsoft
twitter
|
|
| Time Based Key-Value Store Problem |
Medium
|
amazon
apple
atlassian
databricks
facebook
flexport
google
linkedin
lyft
microsoft
netflix
oracle
square
stripe
sumologic
twitter
uber
vmware
zillow
|
|
| Minimum Increment to Make Array Unique |
Medium
|
coursera
ixl
twitter
|
|
| 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
|
|
| Flatten Nested List Iterator Problem |
Medium
|
airbnb
amazon
apple
atlassian
bloomberg
ebay
facebook
google
linkedin
lyft
microsoft
oracle
pinterest
snapchat
splunk
twitter
uber
vmware
|
|
| Course Schedule 2 - Get Ordered Courses |
Medium
|
airbnb
amazon
apple
bloomberg
doordash
facebook
google
intuit
microsoft
nutanix
oracle
pinterest
snapchat
twitter
uber
wayfair
zenefits
|
|
| Sliding Window Maximum |
Hard
|
adobe
alibaba
amazon
apple
bloomberg
bytedance
citadel
coursera
databricks
facebook
google
lyft
microsoft
nutanix
oracle
pinterest
roblox
twitter
uber
vmware
wish
yelp
zenefits
|
|
| Pascal’s Triangle 1 - Generate first n rows |
Easy
|
adobe
amazon
apple
bloomberg
facebook
goldman-sachs
google
microsoft
twitter
uber
|
|
| Skyline Problem |
Hard
|
adobe
amazon
apple
databricks
facebook
goldman-sachs
google
houzz
microsoft
salesforce
tableau
twitter
uber
yelp
|
|
| Valid Parentheses |
Easy
|
adobe
airbnb
akuna-capital
amazon
apple
atlassian
audible
barclays
blizzard
bloomberg
cisco
citadel
doordash
ebay
epic-systems
expedia
facebook
godaddy
goldman-sachs
google
ibm
intel
intuit
jpmorgan
linkedin
liveramp
lyft
mathworks
microsoft
morgan-stanley
oracle
paypal
postmates
riot-games
salesforce
samsung
sap
servicenow
splunk
spotify
tencent
tesla
triplebyte
twilio
twitter
uber
visa
vmware
yahoo
yandex
zenefits
zillow
|
|
| Autocomplete Suggestion System |
|
twitter
|
|
| Clone Undirected Graph |
Medium
|
amazon
apple
facebook
google
linkedin
mathworks
microsoft
pocket-gems
splunk
twitter
uber
vmware
|
|
| Lowest Common Ancestor of a Binary Search Tree |
Medium
|
adobe
amazon
bloomberg
cisco
facebook
google
linkedin
microsoft
oracle
twitter
uber
|
|
| Minimum Window Substring |
Hard
|
adobe
airbnb
amazon
apple
bloomberg
bytedance
cohesity
deutsche-bank
directi
ebay
facebook
godaddy
goldman-sachs
google
linkedin
lyft
microsoft
nutanix
oracle
salesforce
snapchat
tencent
twitter
uber
visa
vmware
yahoo
|
|
| Two Sum |
Easy
|
adobe
aetion
affirm
airbnb
alibaba
amazon
apple
audible
baidu
blackrock
bloomberg
bookingcom
box
bytedance
cisco
citadel
cloudera
deutsche-bank
didi
drawbridge
dropbox
ebay
emc
expedia
facebook
factset
ge-digital
godaddy
goldman-sachs
google
groupon
huawei
ibm
indeed
intel
intuit
jpmorgan
linkedin
lyft
mathworks
microsoft
morgan-stanley
netease
nvidia
oracle
paypal
qualcomm
quora
radius
roblox
salesforce
samsung
sap
servicenow
snapchat
splunk
spotify
tableau
tencent
twilio
twitter
uber
valve
visa
vmware
wish
works-applications
yahoo
yandex
yelp
zillow
zoho
|
|
| Encode and Decode Strings |
Medium
|
bloomberg
google
microsoft
square
twitter
|
|
| Implement Trie |
Medium
|
amazon
apple
bloomberg
ebay
facebook
google
microsoft
nutanix
oracle
pinterest
qualtrics
quip
square
twitter
uber
|
|
| Number of Islands |
Medium
|
adobe
affirm
alibaba
amazon
appdynamics
apple
arista-networks
atlassian
audible
blackrock
bloomberg
bytedance
cisco
citadel
citrix
cohesity
cruise-automation
doordash
ebay
electronic-arts
evernote
expedia
facebook
godaddy
goldman-sachs
google
houzz
hulu
jpmorgan
linkedin
liveramp
lyft
mathworks
microsoft
nutanix
nvidia
oracle
palantir-technologies
paypal
qualtrics
roblox
salesforce
servicenow
snapchat
splunk
spotify
square
sumologic
tableau
twitch
twitter
uber
visa
vmware
wish
yahoo
zenefits
zulily
|
|
| Word Break 1 - Check if word is breakable |
Medium
|
adobe
amazon
apple
audible
bloomberg
bytedance
coupang
ebay
facebook
godaddy
google
hbo
hulu
microsoft
oracle
pinterest
pocket-gems
qualtrics
salesforce
snapchat
square
tripadvisor
twilio
twitter
uber
vmware
yahoo
yelp
zillow
|
|
| Decode Ways |
Medium
|
adobe
amazon
apple
baidu
barclays
bloomberg
cisco
databricks
expedia
facebook
goldman-sachs
google
huawei
lyft
microsoft
oracle
pinterest
snapchat
square
twitter
uber
|
|
| Text Justification |
Hard
|
airbnb
amazon
apple
box
coursera
facebook
google
indeed
intuit
linkedin
lyft
microsoft
palantir
paypal
pinterest
robinhood
snapchat
twilio
twitter
uber
|
|
| Merge Overlapping Intervals |
Medium
|
adobe
alibaba
amazon
apple
atlassian
bloomberg
bytedance
cisco
cohesity
coupang
cruise-automation
dataminr
doordash
ebay
facebook
godaddy
goldman-sachs
google
intuit
linkedin
microsoft
netflix
oracle
palantir-technologies
paypal
pinterest
postmates
salesforce
sap
servicenow
snapchat
sumologic
tencent
twitch
twitter
two-sigma
uber
visa
vmware
wayfair
wish
yahoo
yandex
yelp
zulily
|
|
| Trapping Rain Water |
Hard
|
adobe
affirm
airbnb
amazon
apple
audible
bloomberg
bytedance
citadel
databricks
dataminr
ebay
electronic-arts
facebook
flipkart
goldman-sachs
google
grab
huawei
lyft
microsoft
nvidia
oracle
palantir-technologies
qualtrics
salesforce
servicenow
snapchat
tableau
twitter
uber
visa
wish
yahoo
yandex
zenefits
|
|
| Majority Element - Boyer–Moore majority vote algorithm |
Easy
|
adobe
amazon
apple
google
microsoft
oracle
snapchat
tencent
twitter
yahoo
zenefits
|
|
| 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
|
|
| 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
|
|