Keep Calm and Sell Balloons
problem — every listed problem · all sets
- internal id
- p-0f21ba82
- appearances
- brazil-2019 (brazil-2019) — K
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 17539
Baekjoon Online Judge (wayback) closed 2026-04-28 id 18039
Codeforces Gym id 102428/K - data
- problemsets/brazil-2019.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.