Mirror Illusion
problem — every listed problem · all sets
- internal id
- p-cf7a6bf9
- appearances
- japan-1999 (japan-1999) — E
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 22842
Aizu Online Judge (AOJ) id 1212 - data
- problemsets/japan-1999.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.