May I Add a Letter?

problem — every listed problem · all sets

internal id
p-c5531f06
appearances
caribbean-2020 (caribbean-2020) — M
held
not recorded yet
solve online
Baekjoon Online Judge (wayback) closed 2026-04-28 id 22276
data
problemsets/caribbean-2020.yaml

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