Colourful Captcha
problem — every listed problem · all sets
- internal id
- p-2b48ecad
- appearances
- ukiepc-2025 (ukiepc-2025) — C
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 35241
- data
- problemsets/ukiepc-2025.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.