Most asked coding questions
Company-tagged interview and OA problems. Browse by difficulty or company, then open a question to practice.
TitleCompaniesDifficultyAction
1. Two Sum
AmazonGoldman SachsIntuitEasy
Amazon, Goldman Sachs, Intuit
Easy2. Valid Parentheses
AdobeBloombergByteDanceEasy
Adobe, Bloomberg, ByteDance, Atlassian
Easy3. Best Time to Buy and Sell Stock
ZomatoPayPalUberEasy
Zomato, PayPal, Uber
Easy4. Maximum Subarray
TwitterMicrosoftSwiggyEasy
Twitter, Microsoft, Swiggy, Visa
Easy5. Climbing Stairs
StripeSalesforceNetflixEasy
Stripe, Salesforce, Netflix
Easy6. Reverse Linked List
FlipkartRazorpayNvidiaEasy
Flipkart, Razorpay, Nvidia, Oracle
Easy7. Binary Search
PaytmCiscoAppleEasy
Paytm, Cisco, Apple
Easy8. Merge Two Sorted Lists
LinkedInAmazonGoldman SachsEasy
LinkedIn, Amazon, Goldman Sachs, Intuit
Easy9. Linked List Cycle
ServiceNowAdobeBloombergEasy
ServiceNow, Adobe, Bloomberg
Easy10. Majority Element
MetaZomatoPayPalEasy
Meta, Zomato, PayPal, Uber
Easy11. Single Number
AtlassianTwitterMicrosoftEasy
Atlassian, Twitter, Microsoft
Easy12. Palindrome Number
WalmartStripeSalesforceEasy
Walmart, Stripe, Salesforce, Netflix
Easy13. Roman to Integer
VisaFlipkartRazorpayEasy
Visa, Flipkart, Razorpay
Easy14. Longest Common Prefix
GooglePaytmCiscoEasy
Google, Paytm, Cisco, Apple
Easy15. Remove Duplicates from Sorted Array
OracleLinkedInAmazonEasy
Oracle, LinkedIn, Amazon
Easy