Where’s Wally

problem — every listed problem · all sets

internal id
p-d3fc1e1c
appearances
japan-2010 (japan-2010) — H
held
not recorded yet
solve online
Baekjoon Online Judge (wayback) closed 2026-04-28 id 3872
Aizu Online Judge (AOJ) id 1312
Codeforces Gym id 101413/H
data
problemsets/japan-2010.yaml

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