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

目錄 A Linova and Kingdom B Xenia and Colorful Gems C Kaavi and Magic Spell D E F 題目地址:https://codeforces.com/contest/1336html A Linova and Kingdom 題意:一棵樹根結點爲 1,要選出 k 個結點,使得這 k 個結點到根結點的路徑中非選中結點的總數最大。c++
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