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JOBRA · AI DEBUG ROUND (PREVIEW)sum.cpp
// buggy snippet
int total(vector<int>& a, int n) {
    int sum = 0;
    for (int i = 0; i <= n; i++) { // 🐞        sum += a[i];
    }
    return sum;
}
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Signing Up with a College Email: Fixing "Domain Not Verified"

2 min readBeginner

CodinzHub is currently open to college students, so accounts are created against a college email domain. If you see a domain error while signing up, this is usually the reason — and it is fixable in under a minute. Here is the exact checklist, plus what to do when your institute's domain is genuinely missing.

In this article
    On this page

    CodinzHub is currently open to college students, so accounts are created against a college email domain. If you see a domain error while signing up, this is usually the reason — and it is fixable in under a minute. Here is the exact checklist, plus what to do when your institute's domain is genuinely missing.

    In this guide

    • Why a college email is required
    • The three fixes for a rejected domain
    • What happens after your first sign-in

    Why a college email?

    The platform is a community for college students, so signup checks that your email belongs to an institute. A personal Gmail or Outlook address will not pass verification. That check is also what keeps the placement data on the Premium page and the interview experiences trustworthy — every report comes from a student at that college.

    Fix the error in three steps

    • Use the official address your institute issued you, such as name@iitbhu.ac.in — not an alias you made yourself
    • Check for typos in the domain part of the address; a missing letter is the most common cause
    • If your college uses a different domain and it still fails, message the team on Discord so your institute can be added

    Still stuck?

    Reach the team at support@codinzhub.com with your college name and the exact domain. Including the address you tried saves a round trip. The same team handles account issues raised from the FAQ page.

    After you sign in

    • Your welcome coin balance is on the dashboard — spend it on your first question
    • Add a referral code from a friend if you have one; both accounts get credited
    • Set your target companies from the Companies directory

    Related: How CodinzHub Works · Explore CodinzHub · Writing an experience that gets approved

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