| ||||||||||
| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
= =、写的好漂亮?#include<iostream>
#include<cstdio>
#include<math.h>
#include<queue>
#include<map>
#include<stdlib.h>
#include<string>
#include<string.h>
#include<algorithm>
using namespace std;
typedef long long LL;
#define INF 0x3f3f3f3f
#define PI acos(-1.0)
const int N=1e3+10;
int a[N*2];
int dp[N*2][N*2];
int n;
int main()
{
cin>>n;
for(int i=1;i<=n;i++)
scanf("%d",&a[i]);
memset(dp,0,sizeof(dp));
for(int i=n;i>=1;i--){
for(int j=i;j<=n;j++)
dp[i][j]=max(dp[i+1][j]+(n-(j-i))*a[i],dp[i][j-1]+(n-(j-i))*a[j]);
}
cout<<dp[1][n]<<endl;
}
/*
5
1
3
1
5
2
*/
Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator