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6737 A Wide, Wide Graph dfs and similar dp ds greedy trees Statement D Codeforces Round 862 (Div. 2) {1805} PROGRAMMING 1750.0 Editorial of Codeforces Round #862 (Div. 2)
5456 Ksyusha and Chinchilla dfs and similar dp ds greedy implementation trees Statement G Codeforces Round 874 (Div. 3) {1833} PROGRAMMING 116636