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Exams · ZIO

Olympiad

ZIO

Shishya's tracker has no announced ZIO exam date yet. Official site: iarcs.org.in.

Zonal Informatics Olympiad

IARCS Stage-1 informatics olympiad. Pen-and-paper paper on algorithmic problem-solving — no programming language knowledge required. 4 problems in 3 hours.

35 days to exam(expected)4 Qs100 marks180 minNegative: None📅 Dates & updates📋 Full syllabus🎯 Expected cutoff🧠 Tricks & mnemonics📖 How to crack it🔁 Mistake Notebook

Free ZIO mock tests and previous year paper practice — start now.

Full-length mocks with instant scoring and solutions, PYQ-pattern papers, topic-wise tests and Ask Shishya when you're stuck. Your scores and a free day-by-day plan are saved to your account. All free, no credit card. Content is AI-drafted and checked against the official notification.

Sign up with GoogleNo forms. The exam you sign up from becomes your exam.Sign up from an exam's page and that exam is set up as your exam: your dashboard starts from it and your AI tutor chats are saved. Where the exam has practice, your timed mock scores and weak topics are kept too. For students 13 and above. Free, with your Google account, no forms.Try a free 5-question quiz — no signup →
🎓 Preparing for ZIO? Get a free day-by-day plan to exam day. Rebuilt every morning around what you actually did — miss a day, nothing is lost.Build my plan →
~30 vacancies(indicative / typical)✓ Verify on Indian Association for Research in Computing Science (IARCS) ↗

Updated 3 Sept 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.

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✦ Try a ZIO question — free, no signup

Which of the following problems is decidable (solvable by an algorithm)?

Tap an option to check your answer.

Start with a diagnostic

5 questions across the syllabus to see where you stand.

This becomes your exam: a Daily 5 email on mornings after you visit, and emails about your streak, live tests, exam date and result day, or after a week away. Each has an unsubscribe link.

🧩 Build your own mock — pick exact topics → · every mock readable in हिंदी + 17 languages inside the test

ZIO — Frequently asked questions

Is Shishya free for ZIO preparation?
Yes. Every ZIO mock test, PYQ-pattern paper and study tool on Shishya is completely free — no subscription and no credit card. Questions are written with AI to follow each exam's syllabus topics on Shishya, and re-checked whenever a student reports one.
How many ZIO practice questions does Shishya have?
Shishya has 20 ZIO practice questions, written with AI; every one of them has passed an automated answer check (three independent AI solves and an examiner), and any question a student reports is re-checked. They are available as adaptive mock tests with a worked solution for every question.
What is the expected cutoff for ZIO?
Cutoffs change every cycle with paper difficulty and vacancies. Shishya maintains indicative score-to-rank bands and category-wise (General/EWS/OBC/SC/ST) expected cutoffs — not official figures — at https://shishya.in/exams/ZIO/cutoff
Is there a full-length ZIO mock test in the real exam pattern?
Yes — Shishya has a free full-length Zonal Informatics Olympiad mock built to the exam's pattern, with sections in the paper's order, scored with solutions. It is the "Full-Length Mock (Real Pattern)" tile on this page.
Can I build a topic-wise ZIO mock test?
Yes — pick any topics from the ZIO syllabus, choose 10, 25 or 50 questions and the difficulty, and attempt it as a timed mock with solutions and weak-topic analysis, free, at https://shishya.in/exams/ZIO/build-mock — questions can be read in Hindi and 17 other Indian languages inside the test.
How can I prepare for ZIO for free?
Shishya offers ZIO preparation 100% free: adaptive mock tests, official previous year papers (linked from the conducting body), the full syllabus (https://shishya.in/exams/ZIO/syllabus), subject-wise memory tricks (https://shishya.in/exams/ZIO/tricks), a free day-by-day coach plan and an AI tutor in 18 Indian languages.

Previous year papers

0 questions across all years

Official papers

Question papers and answer keys as the conducting body published them. Each link opens the body's own file.

Published by Indian Association for Research in Computing Science (IARCS)

No PYQ-pattern practice sets for this exam yet.

Mock tests

Take any mock in your preferred language — use the language picker inside the mock to switch (Hindi, Telugu, Tamil, Bengali, and 15 more).

New to ZIO? Start small:a 25-question subject test first — 4 in 5 aspirants finish these; full mocks after your first win.Pick a subject test ↓

  • ZIO — Quick Practice

    FULL

    20 questions · 180 min

    Start mock →

  • ZIO — Full-Length Mock (Real Pattern: 4Q · 180 min)

    FULL

    4 questions · 180 min

    Start mock →

Practice by subject & topic

Full-length subject tests below — 25 questions each, real exam format, instant scoring.Want to drill a single topic? Open it from the syllabus — a topic that has practice questions has a short quiz on its page.

  • Algorithmic Problem Solving

    20 Qs

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Questions
Difficulty

Your rank

vs everyone who has taken this exam

Take a mock to see where you stand on the leaderboard.

Students

2

Mocks taken

9

Average score

58%

Top score

100%

What can I get from ZIO?

Mock-score → expected rank → likely outcome. Use the mocks below to find your current band, then plan how many marks you need to climb.

AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.

News & timeline

See older updates →

Latest news

Important dates

  1. ZIO-2026 result announced

    passed

    No official date yet — the expected result date has passed

    Expected

    Results announced in December 2025 as per schedule

  2. 🏅INOI-2026 exam (completed)

    passed

    Sat, 14 Feb, 2026

    Officialiarcs.org.in ↗

    Second round for ZIO/ZCO qualifiers; C++ only

  3. ICO-2027 notification (expected)

    passed

    Sun, 20 Sept, 2026

    Officialiarcs.org.in ↗

    Details will be announced in second half of September 2026

  4. ZIO-2027 registration opens (expected)

    passed

    Thu, 1 Oct, 2026

    Officialiarcs.org.in ↗

    Registrations for ICO-2027 will open in October 2026

  5. ZIO-2027 registration deadline (expected)

    20 days away

    Fri, 30 Oct, 2026

    Expected

    Based on previous cycle pattern; typically late October

  6. 🏅ZIO-2027 exam (expected)

    35 days away

    Sat, 14 Nov, 2026

    Expected

    Typically mid-November; ZIO-2026 was November 15, 2025

  7. 🏅INOI-2027 exam (expected)

    126 days away

    Sat, 13 Feb, 2027

    Expected

    Typically mid-February; for ZIO-2027/ZCO-2027 qualifiers

Syllabus

Tap any topic for its study notes + a 10-question topic test

Algorithmic Problem Solving