Convert Sorted List into a height-balanced Binary search Tree |
Medium
|
amazon
bloomberg
facebook
google
lyft
microsoft
oracle
vmware
zenefits
|
|
Count of Smaller Numbers After Self |
Hard
|
adobe
amazon
apple
bloomberg
facebook
google
microsoft
oracle
uber
|
|
Count Primes |
Medium
|
adobe
amazon
apple
bloomberg
capital-one
ebay
facebook
goldman-sachs
google
intel
microsoft
oracle
yahoo
yandex
|
|
Different Ways to Add Parentheses |
Medium
|
amazon
cisco
citadel
facebook
google
|
|
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
|
|
Find Peak Element in a Given Array |
Medium
|
amazon
apple
bloomberg
bytedance
facebook
google
ixl
lyft
microsoft
quora
uber
vmware
yahoo
|
|
Find the Closest Palindrome |
Hard
|
amazon
facebook
google
microsoft
nutanix
pinterest
uber
yelp
|
|
Fisher-Yates Shuffle |
Medium
|
facebook
|
|
Fraction to Recurring Decimal |
Medium
|
airbnb
amazon
apple
cohesity
facebook
goldman-sachs
google
ixl
microsoft
rubrik
uber
|
|
Generate Nth Fibonacci Number |
Easy
|
amazon
apple
barclays
facebook
mathworks
microsoft
sap
yahoo
|
|
Jump Game 2 - Get min jumps |
Medium
|
adobe
amazon
apple
facebook
google
huawei
microsoft
nutanix
oracle
uber
|
|
Knight Dialer |
Medium
|
box
citadel
facebook
google
microsoft
pinterest
twilio
|
|
Kth Permutation Sequence of Numbers 1 to N |
Hard
|
amazon
apple
facebook
google
microsoft
twitter
yahoo
|
|
Largest Rectangle in Histogram |
Hard
|
adobe
amazon
bloomberg
facebook
flipkart
google
microsoft
twitter
|
|
Least Number of Perfect Squares that Sums to n |
Medium
|
adobe
amazon
apple
cisco
ebay
facebook
godaddy
google
grammarly
linkedin
lyft
microsoft
uber
yandex
|
|
Maximum Size Subarray Sum equals K |
Medium
|
amazon
facebook
google
microsoft
palantir-technologies
|
|
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
|
|
Number of trailing zeros in a factorial |
Medium
|
amazon
bloomberg
facebook
microsoft
wish
|
|
Odd Even Linked List - Bring odd nodes first and even later |
Medium
|
amazon
bloomberg
capital-one
ebay
facebook
google
microsoft
|
|
Paint House 2 - N houses with k colors with no two adjacent houses with same color color |
Hard
|
facebook
google
linkedin
snapchat
|
|
Palindrome Pairs |
Hard
|
airbnb
amazon
apple
bloomberg
facebook
google
square
uber
|
|
Palindrome Permutation |
Easy
|
amazon
apple
bloomberg
facebook
google
microsoft
uber
|
|
Partition to K Equal Sum Subsets |
Medium
|
amazon
bytedance
ebay
facebook
google
houzz
linkedin
microsoft
pinterest
vmware
|
|
Peeking Iterator |
Medium
|
amazon
apple
atlassian
ebay
facebook
google
microsoft
oracle
yahoo
|
|
Populate next pointer to right node in Binary Tree |
Medium
|
amazon
bloomberg
facebook
google
microsoft
oracle
|
|
Range Sum Query – Mutable |
Medium
|
amazon
facebook
google
twitter
|
|
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 K Digits |
Medium
|
adobe
amazon
bloomberg
bytedance
didi
facebook
google
microsoft
nutanix
oracle
snapchat
vmware
|
|
Remove Outermost Parentheses |
Easy
|
apple
facebook
google
|
|
Reverse Bits |
Easy
|
airbnb
amazon
apple
facebook
google
samsung
tencent
|
|
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
|
|
Search in Rotated Sorted Array 2 - Check if number exists - Duplicates allowed |
Medium
|
adobe
amazon
bloomberg
facebook
google
microsoft
|
|
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
|
|
Shortest Palindrome 1 - Prepending characters |
Hard
|
adobe
amazon
bloomberg
facebook
google
microsoft
oracle
pocket-gems
|
|
Sort Characters By Frequency |
Medium
|
amazon
bloomberg
expedia
facebook
google
linkedin
uber
twitter
|
|
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
|
|
Strobogrammatic Number 1 - Check if strobogrammatic |
Easy
|
cisco
facebook
google
|
|
Strobogrammatic Number 2 - Generate for length n |
Medium
|
cisco
facebook
google
twitter
|
|
Strobogrammatic Number 3 - Count in Range |
Hard
|
facebook
google
|
|
Sudoku Solver |
Hard
|
adobe
amazon
apple
arista-networks
doordash
dropbox
expedia
facebook
google
microsoft
oracle
riot-games
roblox
snapchat
uber
vmware
wish
|
|
Surrounded Regions |
Medium
|
amazon
ebay
facebook
google
splunk
uber
|
|
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 Parenthesis String |
Medium
|
alibaba
amazon
bloomberg
facebook
google
|
|
Valid Sudoku |
Medium
|
adobe
amazon
apple
bloomberg
cruise-automation
doordash
facebook
google
microsoft
oracle
pinterest
roblox
salesforce
snapchat
twitter
uber
vmware
|
|