Company OAsDSA SheetAll ProblemsPlacement DataInterview ExperiencesPremium
OAHelper
by@Nxtwave

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.

Live — Try Now

Practice Real
Company OAs

Timed assessments with real questions from top companies. Get comfortable with the actual test environment.

Everything you need

Built to match the real assessment experience

Real OA Environment

Identical to actual company assessments with the same constraints and interface.

Timed Tests

Experience full time pressure to prepare for the actual assessment conditions.

Real Questions

Practice with questions directly sourced from company OA databases.

Track Progress

Monitor your performance across different companies and topics over time.

The Test Interface

A familiar coding environment
before the real thing

Get comfortable with timed code editors, sample test cases, and submission flows before your actual OA.

solution.cpp
1#include <iostream>
2#include <vector>
3using namespace std;
4
5int solveMaxProfit(int n, int b) {
6 // Write your solution here
7
8 return 0;
9}
10
11int main() {
12 int num1, num2;
13 cin >> num1 >> num2;
14 cout << solveMaxProfit(num1, num2);
15 return 0;
16}

Available Tests

Start practicing with real company OA patterns

Ready to ace your placements?

Join thousands of students preparing smarter with OAHelper's pre-placement tests.