Codeforces Round #635 (Div. 1) / contest 1336

目录 A Linova and Kingdom B Xenia and Colorful Gems C Kaavi and Magic Spell D E F 题目地址:https://codeforces.com/contest/1336html A Linova and Kingdom 题意:一棵树根结点为 1,要选出 k 个结点,使得这 k 个结点到根结点的路径中非选中结点的总数最大。c++
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