What Goes Up Must Come Down
problem — every listed problem · all sets
- internal id
- p-7521801b
- appearances
- japan-2018 (japan-2018) — G
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 16745
Aizu Online Judge (AOJ) id 1395
Codeforces Gym id 102082/G - data
- problemsets/japan-2018.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.