Trapezoids

problem — every listed problem · all sets

internal id
p-ccbe9cf6
appearances
japan-1999 (japan-1999) — D
held
not recorded yet
solve online
Baekjoon Online Judge (wayback) closed 2026-04-28 id 22841
Aizu Online Judge (AOJ) id 1211
data
problemsets/japan-1999.yaml

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