Company OAsDSA SheetAll ProblemsPlacement DataInterview ExperiencesPremium
OAHelper

Built by students, for students — practice company-specific OAs, DSA sheets, and real interview experiences to land your dream role.

© 2026 OAHelper.in·Terms·Privacy·Refunds·Trust & Safety·Contact·
Ready to crack your next OA?

Practice company-specific questions trusted by thousands of students across India.

Start PracticingGo Premium
OA Practice·DSA·Placements

Disclaimer: OAHelper is an independent educational platform. We (oahelper.in) do not own the images or questions shown. Content is uploaded by users.

Amazon_30Aug OA Questions 2026 — Online Assessment & Interview Practice

4 real Amazon_30Aug online assessment questions from recent interviews. Includes coding rounds, MCQs, and Amazon_30Aug interview preparation tips for SDE Intern, New Grad, and full-time roles.

  • Longest Regex Match Substring
  • Minimize Cleaning Cost
  • Longest Wildcard Match
  • Minimize Cleaning Cost
Browse All CompaniesInterview ExperiencesPlacement DataAmazon_30Aug String OA questions (4)Amazon_30Aug Counting OA questions (2)Amazon_30Aug Greedy OA questions (2)Amazon_30Aug Hash Table OA questions (2)Amazon_30Aug String Matching OA questions (1)Amazon_30Aug Two Pointers OA questions (1)
All Companies
A

Amazon_30Aug OA Questions

4 QuestionsOnline Assessment

Unlock Full Access

Practice all 4 questions

Unlock All Questions

Get full access to practice

0 of 4 solved in this company0% complete

Longest Regex Match Substring

StringTwo PointersString Matching
Premium

Minimize Cleaning Cost

StringHash TableGreedy+1
Premium

Longest Wildcard Match

String
Premium
04

Minimize Cleaning Cost

GreedyHash TableString+1
Solve