Count the Regions

problem — every listed problem · all sets

internal id
p-8e3f83a5
appearances
japan-2013 (japan-2013) — C
held
not recorded yet
solve online
Baekjoon Online Judge (wayback) closed 2026-04-28 id 9601
Aizu Online Judge (AOJ) id 1337
Codeforces Gym id 102014/C
data
problemsets/japan-2013.yaml

St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.