Codeforces Round #722 (Div. 2)

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Codeforces Round #722 (Div. 2)

题号题目知识点
AEshag Loves Big Arrays(题解略)贪心
BSifid and Strange Subsequences思维
CParsa’s Humongous Tree树形dp
DKavi on Pairing Duty思维+推公式
ETrees of Tranquillity思维+线段树
FIt’s a bird! No, it’s a plane! No, it’s AaParsa!思维+最短路

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