Question bank
4,310 interview questions, answered.
Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.
Easy 190Medium 2,498Hard 982
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- 193String to Integer (atoi)Coding·
BitGo - 194Subarrays with K Different IntegersHardCoding· HHashedIn, Microsoft
- 195Subsets IICoding·
Salesforce, Zepto - 196Sum of Fibonacci NumbersCoding·
Amazon - 197Sum of Subarray MinimumsCoding·
Paytm, PhonePe - 198Surrounded RegionsCoding·
Oracle - 199Task SchedulerCoding·
Google - 200The Number of Ways to Make the SumCoding·
Visa - 201Top k frequent elementsMediumCoding· Amazon, Apple
- 202Topological sort or Kahn's algorithmCoding· Amazon, Microsoft
- 203Trapping RainwaterCoding·
BloomBerg, PhonePe - 204Two SumEasyCoding·
Adobe, Pluang - 205Unique paths IICoding· Amazon
- 206Valid Palindrome IIICoding· Adobe, Barclays
- 207Valid Paranthesis CheckerCoding· Amazon, Fidelity
- 208Valid Word AbbreviationCoding· Amazon
- 209Vertical Order TraversalCoding· Salesforce
- 210Walls and GatesCoding· Amazon, BitGo
- 211Wiggle SortCoding· Amazon
- 212Word BreakMediumCoding·
Meta, ServiceNow - 213Word ladder ICoding·
Apple, Linkedin - 214Word ladder IICoding· Amazon, Cisco
- 215Zig Zag or Spiral TraversalCoding·
M2P Fintech - 2160 and 1 KnapsackCoding· Meta