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.

visa_6oct OA Questions 2026 — Online Assessment & Interview Practice

4 real visa_6oct online assessment questions from recent interviews. Includes coding rounds, MCQs, and visa_6oct interview preparation tips for SDE Intern, New Grad, and full-time roles.

  • Two Array Sum Queries
  • Moisture Grid Smoothing
  • Count Valid Messages
  • Alien Code Substrings Divisible by 3
Browse All CompaniesInterview ExperiencesPlacement Datavisa_6oct Array OA questions (3)visa_6oct Counting OA questions (2)visa_6oct Enumeration OA questions (2)visa_6oct Simulation OA questions (2)visa_6oct String OA questions (2)visa_6oct Hash Table OA questions (1)visa_6oct Math OA questions (1)visa_6oct Matrix OA questions (1)
All Companies
v

visa_6oct 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

Two Array Sum Queries

ArrayHash TableSimulation+1
Premium

Moisture Grid Smoothing

ArrayMatrixSimulation+1
Premium

Count Valid Messages

ArrayStringEnumeration+1
Premium
04

Alien Code Substrings Divisible by 3

StringMathEnumeration
Solve