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problem — every listed problem · all sets

internal id
p-3a50d0a5
appearances
north-russia-2020 (north-russia-2020) — G
held
not recorded yet
solve online
Baekjoon Online Judge (wayback) closed 2026-04-28 id 20238
data
problemsets/north-russia-2020.yaml

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