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贪心。#include<cstdio> #include<cstdlib> #include<cstring> #include<cmath> #include<ctime> #include<iostream> #include<algorithm> #include<vector> #include<string> #include<queue> #include<utility> #inclu

ac自动机: #include<bits/stdc++.h>using namespace std;#define REP(i,a,b) for(int i = a; i <= b; ++i) #define FOR(i,a,b) for(int i = a; i < b; ++i) #define mem(a,b) memset(a,b,sizeof(a)) #define MP make_pai

地址:http://acm.hdu.edu.cn/contests/contest_showproblem.php?pid=1010&cid=778 #include using namespace std; const int maxn=1e5+1e3; int n, a[maxn]; int pre[maxn], nxt[maxn], vis[maxn]; vectorint> V;

#include<bits/stdc++.h> using namespace std; typedef long long LL; const int maxn=5050; const LL inf=1LL<<60; int a[maxn]; int n; LL sum[maxn]; #define S(l,r) (sum[r]-sum[l]) int main(){ scanf("%d"