[bzoj4562][Haoi2016]食物链(拓扑序+dp)
【题目链接】http://www.lydsy.com/JudgeOnline/problem.php?id=4562
【呆马】#include<cstdio>
#include<algorithm>
#include<cmath>
#include<cstdlib>
#include<iostream>
const int N=1e5+1;
using namespace std;
struct
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2016-07-24 00:02:58 ·
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