随笔分类 - Atcoder Beginning
E - Wrapping Chocolate -- AC Beginner 245
摘要：1 #include<bits/stdc++.h> 2 3 typedef long long ll; 4 5 const int N = 4e5+10,M = N * 4,INF = 0x3f3f3f3f,mod = 1e9+7; 6 struct Node{ 7 int x,y; 8 bool
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C - Choose Elements -- AC Beginner 245
摘要：https://atcoder.jp/contests/abc245/editorial/3655
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