A HackerEarth assessment is a timed coding test that employers send through HackerEarth's platform. Programming questions are graded on hidden test cases, so partial credit is possible, and small input and output mistakes cost more points than people expect. This page covers what the HackerEarth assessment is, its format and timings, how it is scored, the rules to know before you start, how to prepare and a practice plan.
What the HackerEarth assessment is
HackerEarth still runs its assessments product, with a new candidate interface released in 2026. Employers mix programming problems with multiple-choice and other question types and set their own timers.
Format and timings
| Part | What it involves | Time and questions |
|---|---|---|
| Programming questions | Read from standard input, write to standard output; Compile and Test runs samples, Submit runs hidden tests | Set by the employer |
| Multiple-choice questions | Untimed by default, but a per-question timer may be set | Set by the employer |
| Other question types | HackerEarth markets around 15, chosen by the employer | Varies |
Total: set by the employer, with an overall timer and optional per-question timers.
How it is scored
- Your score is the sum of points for the hidden test cases you pass, so partial solutions earn partial credit.
- Sample test cases carry no points.
- The employer sets any cut-off.
Rules to know before you start
- Output must match the expected output exactly.
- Your program must handle every input within the time limit.
- Negative marking and retakes depend on the employer's settings.
How to prepare
- Use Compile and Test with custom input to check edge cases; only Submit counts.
- Read the input bounds before coding, and use fast input and output (for example BufferedReader in Java).
- Print exactly what is asked: no extra spaces, prompts or debug lines.
- Submit a correct brute force early, then improve it.
A practice plan
- Day 1: read the platform's candidate guide and try its practice environment.
- Days 2 to 4: two timed problems a day in your test language, writing your own edge-case tests.
- Day 5: one full mock under the real time limit.
- Day 6: review mistakes and the input and output rules.
- Day 7: take the test in one sitting with a stable connection.
Related guides: what an online assessment is, the HackerRank assessment guide, the CodeSignal assessment guide.
On the day, and the mistakes to avoid
- Check the platform, the allowed languages and the time limit in the invitation.
- Try the practice environment or tutorial so the editor and run buttons are not new.
- Use a reliable computer on a stable connection, with other apps and tabs closed.
- Read every problem before starting, and do the quickest ones first.
- Write and run your own edge-case tests before submitting.
- Keep a few minutes at the end to check output formats and resubmit if needed.
Mistakes that cost candidates:
- Writing an elegant solution that fails large hidden tests because of its complexity.
- Mismatched output formats: extra spaces, prompts or debug prints.
- Spending most of the time on one hard problem while easier points go unclaimed.
- Pasting code you did not write, which integrity settings can flag.
- Not reading the input limits, so a solution that works on samples times out.
What happens after the HackerEarth assessment
If you pass, the next stage is usually a technical interview, and some interviewers ask about your assessment solution. Be ready to explain your approach and its complexity out loud, and prepare two or three behavioral stories for the conversations that follow. For the next stage, see software engineer behavioral answers.
Where CoPilot Interview fits
Online assessments are tests you take on your own: outside help is not allowed, and proctoring settings can flag other apps, tab switches or a second voice. Practice beforehand instead. CoPilot Interview is an AI interview assistant; its free AI mock interview prepares you for the interviews that follow the assessment, with questions built from your résumé and the job description and each spoken answer scored out of ten. The free plan gives 15 minutes a day of live help in sessions of up to 15 minutes, with AI mock interviews included. Read the invitation carefully and follow your employer's rules.
Disclosure: CoPilot Interview is our product, so weigh what we say about it accordingly.
Frequently asked questions
How is a HackerEarth test scored?
By the hidden test cases you pass on each programming question, so partial credit is possible. Sample cases do not count.
Can I run my code before submitting?
Yes. Compile and Test runs the sample cases and any custom input; Submit runs the hidden tests that score.
Why did my correct solution fail?
The usual reasons are output format mismatches and time limits. Check the exact format and the input size.
Is there negative marking on HackerEarth?
It depends on how the employer set the test; ask the recruiter if it matters to you.
Can I use AI tools during the HackerEarth assessment?
No, unless the instructions explicitly allow it. Assessments are meant to be taken on your own, and proctoring settings can flag other apps, tab switches or pasted code. Use AI tools to practice beforehand, and follow your employer's rules.
Practice this interview before the real one
The AI mock interview builds questions from your resume and the job description, reads them aloud and scores each spoken answer out of 10. Included on the free plan.
Start a mock interview