# Canadian Computing Competition (CCC) Junior

> Canonical facts page for LLMs and citation crawlers. Human-readable page: https://olympiads.co.uk/event/cemc-university-of-waterloo/canadian-computing-competition-junior

## Core facts

- **Organiser:** Centre for Education in Mathematics and Computing (University of Waterloo) (https://olympiads.co.uk/organisation/cemc-university-of-waterloo)
- **Subjects:** Computer Science
- **Age groups:** Intermediate
- **Activity type:** Competition
- **Format:** Online
- **Entry route:** Schools order through CEMC
- **Entry badges:** school_entry, open_entry
- **Qualification note:** CCC Junior does not invite students to CCO. Invitations come from official CCC Senior results at Canadian schools.

## Dates

- **Next/representative edition start:** 2027-02-17
- **End date:** 2027-02-18

### Key stages

- Ordering deadline — deadline 2027-02-11
- CCC Junior — from 2027-02-17

## URLs

- **Official website:** https://cemc.uwaterloo.ca/contests/ccc
- **Registration:** https://cemc.uwaterloo.ca/contests/ccc
- **Olympiads.co.uk page:** https://olympiads.co.uk/event/cemc-university-of-waterloo/canadian-computing-competition-junior
- **This facts page:** https://olympiads.co.uk/ai/events/cemc-university-of-waterloo/canadian-computing-competition-junior.md

## Summary

The Canadian Computing Competition Junior paper is run by the University of Waterloo CEMC. It is an online contest of five questions in three hours (75 marks), available in English and French. Junior versus Senior is about programming skill, not school grade. Strong Junior scores do not invite students to the Canadian Computing Olympiad — CCO invitations come from the official Senior paper.

## Context

Waterloo CEMC’s junior programming contest — five questions in three hours, online.

## Related competitions

- https://olympiads.co.uk/event/cemc-university-of-waterloo/canadian-computing-competition-senior

## Guidance

### Parent advice

CCC Junior is a school programming contest. The Canadian IOI pathway starts from CCC Senior, then CCO.

### Student advice

Choose Junior if you are newer to contest programming. You may sit only one CCC paper in a given year.

### Teacher advice

2027 dates 17 February in the Americas, 18 February elsewhere. Order by 11 February. CAD $10 per participant plus CAD $5 per order. Languages include C, C++, Python and Java.

## How to prepare

- Work through past CCC Junior problems
- Practise submitting code under a three-hour limit

## Data provenance

- **Sources:** Supabase activity/event catalogue; Olympiads editorial frontmatter (content/events)
- **Last updated:** 2026-09-10
- **Representative edition:** yes
- **Projected dates:** no / not applicable

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Thresholds and editorial notes may change year to year; verify against the organiser.