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FatMouse‘ Trade

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 42882    Accepted Submission(s): 14310

#include<iostream>
#include<algorithm>
using namespace std;

struct room
{
    double n;
    double h;
};


int cmp(room a, room b)
{
    return a.h/a.n > b.h/b.n;

}

int main()
{
    int v;
    int n;
    room r[1100];
    while(cin>>v>>n)
    {
        if(v == -1)break;
        int i;
        double total = 0;
        for(i = 0; i < n; ++i)
            cin>>r[i].h>>r[i].n;
        sort(r,r+n,cmp);

    /*    for(i = 0; i < n; ++i)
            cout<<r[i].h<<‘ ‘<<r[i].n<<endl;*/
        for(i = 0 ; i < n ; ++i)
        {
            if(v == 0)break;
            if(v >= r[i].n)
            {
                v -= r[i].n;
                total += r[i].h;
            }
            else {
                total += r[i].h/r[i].n*v;
            //    v = 0;
                break;
            }
        }
        printf("%.3lf\n",total);
    }
    return 0;
}

View Code

#include<iostream>
#include<algorithm>
using namespace std;

struct room
{
    double n;
    double h;
};

int cmp(room a, room b)
{
    return a.h/a.n > b.h/b.n;

}

int main()
{
    int v;
    int n;
    room r[1100];
    while(cin>>v>>n)
    {
        if(v == -1)break;
        int i;
        double total = 0;
        for(i = 0; i < n; ++i)
            cin>>r[i].h>>r[i].n;
        sort(r,r+n,cmp);

    /*    for(i = 0; i < n; ++i)
            cout<<r[i].h<<‘ ‘<<r[i].n<<endl;*/
        for(i = 0 ; i < n ; ++i)
        {
            if(v == 0)break;
            if(v >= r[i].n)
            {
                v -= r[i].n;
                total += r[i].h;
            }
            else {
                total += r[i].h/r[i].n*v;
            //    v = 0;
                break;
            }
        }
        printf("%.3lf\n",total);
    }
    return 0;
}

hdu 1009 FatMouse' Trade,布布扣,bubuko.com

hdu 1009 FatMouse' Trade

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原文地址：http://www.cnblogs.com/2014acm/p/3885479.html