| Roman To Integer |
Easy
|
adobe
amazon
apple
bloomberg
facebook
goldman-sachs
google
linkedin
microsoft
oracle
qualtrics
uber
yahoo
zillow
|
|
| String Compression |
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 |
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 |
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
|
|
| 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
|
|
| Number of Subsequences That Satisfy the Given Sum Condition |
Medium
|
facebook
google
|
|
| Word Pattern 2 |
Medium
|
dropbox
facebook
pony-ai
ponyai
uber
|
|
| Shift 2D Grid |
Easy
|
amazon
facebook
|
|
| Next Greater Element 1 |
Easy
|
amazon
bloomberg
facebook
google
microsoft
oracle
twitter
|
|
| Single Number 3 - All elements except two occur twice |
Medium
|
amazon
apple
facebook
yahoo
|
|
| Find Pivot Index |
Easy
|
amazon
apple
bloomberg
citadel
coupang
expedia
facebook
godaddy
goldman-sachs
google
indeed
microsoft
radius
salesforce
tesla
|
|
| Path Sum 1 - Check if root to leaf path exists |
Easy
|
adobe
amazon
apple
bloomberg
facebook
microsoft
oracle
zillow
uber
|
|
| Can Place Flowers |
Easy
|
amazon
cisco
facebook
google
linkedin
yahoo
|
|
| Isomorphic Strings |
Easy
|
adobe
amazon
bloomberg
facebook
google
linkedin
microsoft
oracle
salesforce
yahoo
yelp
|
|
| Kth Largest Element in a Stream |
Easy
|
adobe
amazon
apple
bloomberg
ebay
facebook
google
microsoft
nutanix
|
|
| Number of 1 Bits |
Easy
|
adobe
amazon
apple
box
cisco
facebook
google
microsoft
qualcomm
|
|
| Valid Palindrome 2 |
Easy
|
atlassian
facebook
google
microsoft
yahoo
|
|
| Unique Email Addresses |
Easy
|
adobe
amazon
facebook
google
microsoft
|
|
| Remove Linked List Elements |
Easy
|
adobe
amazon
apple
bloomberg
capital-one
facebook
google
microsoft
paypal
pure-storage
uber
|
|
| Min Stack |
Medium
|
adobe
amazon
apple
bloomberg
ebay
facebook
flipkart
goldman-sachs
google
groupon
intuit
linkedin
lyft
microsoft
morgan-stanley
netflix
oracle
pure-storage
servicenow
snapchat
uber
visa
wish
zenefits
|
|
| Happy Number |
Easy
|
adobe
airbnb
amazon
apple
bloomberg
ebay
evernote
facebook
google
jpmorgan
microsoft
nutanix
pinterest
pure-storage
twitter
uber
|
|
| Lowest Common Ancestor of a Binary Tree 3 - Given Parent Pointer |
Medium
|
facebook
twitter
|
|
| Invert Binary Tree |
Easy
|
amazon
apple
bloomberg
facebook
google
microsoft
salesforce
vmware
|
|
| First Unique Character in a String |
Easy
|
adobe
amazon
apple
bloomberg
facebook
goldman-sachs
google
huawei
jpmorgan
linkedin
microsoft
servicenow
yahoo
zillow
zulily
|
|
| Substring with Concatenation of All Words |
Hard
|
adobe
amazon
apple
bloomberg
dropbox
facebook
google
microsoft
|
|
| Merge Two Binary Trees |
Easy
|
adobe
amazon
apple
bloomberg
facebook
huawei
oracle
salesforce
|
|
| Palindrome Linked List |
Easy
|
adobe
amazon
apple
bloomberg
cisco
facebook
google
grab
intel
ixl
microsoft
nutanix
snapchat
vmware
|
|
| Maximum Product of Three Numbers |
Easy
|
amazon
apple
bloomberg
cisco
citadel
coursera
facebook
goldman-sachs
intuit
redfin
symantec
|
|
| Integer to English Words |
Hard
|
amazon
apple
barclays
bloomberg
capital-one
citrix
facebook
google
jpmorgan
linkedin
microsoft
nutanix
oracle
palantir-technologies
paypal
sap
splunk
square
tableau
tesla
uber
visa
yahoo
yelp
zillow
|
|
| Intersection of Three Sorted Arrays |
Easy
|
facebook
tripadvisor
|
|
| Snakes and Ladders |
Medium
|
amazon
apple
cisco
facebook
google
hulu
microsoft
uber
|
|
| Excel Sheet Column Number |
Easy
|
amazon
apple
bloomberg
dropbox
facebook
factset
google
microsoft
uber
|
|
| Count and Say Sequence |
Medium
|
adobe
amazon
apple
bloomberg
epic-systems
facebook
google
microsoft
oracle
|
|
| ZigZag Conversion |
Medium
|
adobe
amazon
apple
bloomberg
facebook
google
microsoft
paypal
uber
wish
|
|
| Design Search Autocomplete System |
Hard
|
amazon
apple
bloomberg
dropbox
facebook
google
lyft
microsoft
salesforce
snapchat
uber
|
|
| Expression Add Operators |
Hard
|
apple
bytedance
facebook
google
microsoft
snapchat
uber
|
|
| Next Greater Element 3 - Find smallest number larger than given number using same digits same digits |
Medium
|
amazon
bloomberg
facebook
houzz
microsoft
vmware
|
|
| Largest Number From Given Numbers |
Medium
|
amazon
apple
bytedance
facebook
google
microsoft
oracle
salesforce
uber
works-applications
twitter
|
|
| Plus One 1 - Given number as array plus one |
Easy
|
adobe
amazon
apple
bloomberg
capital-one
ebay
facebook
google
spotify
uber
|
|
| Kth Smallest Element in a Sorted Matrix |
Medium
|
adobe
amazon
apple
bloomberg
facebook
google
microsoft
twitter
uber
yahoo
|
|
| Moving Average of Last N numbers in a Stream |
Easy
|
amazon
appdynamics
bloomberg
facebook
google
indeed
microsoft
twitter
uber
|
|
| Design HashMap |
Easy
|
adobe
amazon
apple
atlassian
dell
facebook
goldman-sachs
google
linkedin
microsoft
nvidia
oracle
reddit
salesforce
servicenow
tableau
twitter
uber
vmware
|
|
| Ugly Number |
Easy
|
facebook
|
|