Title Difficulty Companies Videos
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
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 Problem 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
Can Place Flowers Problem 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 Problem Easy atlassian facebook google microsoft yahoo
Unique Email Addresses Problem Easy adobe amazon facebook google microsoft
Remove Linked List Elements Problem 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
Palindrome Linked List Problem 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 Problem 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 Problem Medium amazon apple cisco facebook google hulu microsoft uber
Excel Sheet Column Number Problem Easy amazon apple bloomberg dropbox facebook factset google microsoft uber
Count and Say Sequence Problem 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
Next Greater Element 3 - Find smallest number larger than given number using 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
Plus One 1 - Given number as array plus one Easy adobe amazon apple bloomberg capital-one ebay facebook google spotify uber
Moving Average of Last N numbers in a Stream Easy amazon appdynamics bloomberg facebook google indeed microsoft twitter uber
Design HashMap Problem Easy adobe amazon apple atlassian dell facebook goldman-sachs google linkedin microsoft nvidia oracle reddit salesforce servicenow tableau twitter uber vmware
Ugly Number Problem Easy facebook
Basic Calculator 3 Problem Hard amazon apple bytedance doordash facebook google houzz hulu jingchi microsoft pinterest pocket-gems snapchat uber
Basic Calculator 2 Problem Medium airbnb amazon apple atlassian doordash ebay facebook google houzz indeed intuit ixl microsoft oracle paypal postmates reddit snapchat tableau tencent uber
Basic Calculator 1 Problem Hard adobe amazon bloomberg facebook google indeed intuit jump-trading karat microsoft paypal pinterest robinhood roblox snapchat uber
Friend Requests I - Overall Acceptance Rate Problem Easy facebook
Employees Earning More Than Their Managers Problem Easy adobe amazon apple facebook google