第三届山东ACM Pick apples

#include<iostream>
#include<stdio.h>
#include<algorithm>
#include<string.h>
using namespace std;

struct node{
    long long S;
    long long P;
    double q;
}a[3];

bool cmp(node a,node b){
    return a.q>b.q;
}

int main(){

    int T;
    long long V;
    long long sum;
    long long dp[6000];
    long long tmp;
    int i,j;
    int ca=0;


    scanf("%d",&T);

    while(T--){
        scanf("%lld%lld",&a[0].S,&a[0].P);
        a[0].q=(double)(a[0].P)/a[0].S;
        //cout<<a[0].q<<endl;
        scanf("%lld%lld",&a[1].S,&a[1].P);
        a[1].q=(double)(a[1].P)/a[1].S;
        //cout<<a[1].q<<endl;
        scanf("%lld%lld",&a[2].S,&a[2].P);
        a[2].q=(double)(a[2].P)/a[2].S;
        //cout<<a[2].q<<endl;
        scanf("%lld",&V);

        sort(a,a+3,cmp);

        sum=V%a[0].S;

        for(i=1;;++i){
            if(a[0].S*i>=5000){
                break;
            }
        }

        sum=sum+a[0].S*i;

        memset(dp,0,sizeof(dp));

        for(i=0;i<3;++i){
            for(j=a[i].S;j<=sum;++j){
                tmp=dp[j-a[i].S]+a[i].P;
                if(tmp>dp[j]){
                    dp[j]=tmp;
                }
            }
        }

        for(i=sum;;--i){
            if(dp[i]>0){
                break;
            }
        }

        printf("Case %d: %lld\n",++ca,((V-sum)/a[0].S)*a[0].P+dp[i]);

    }

    return 0;
}


/**************************************
	Problem id	: SDUT OJ J 
	User name	: 666777 
	Result		: Accepted 
	Take Memory	: 556K 
	Take Time	: 0MS 
	Submit Time	: 2016-04-30 17:44:39  
**************************************/