杭电4209

#include <stdio.h>int main(){    int N,i;    double D,P,sum;    double min;    int n,Case=0;    while(~scanf("%d",&N)&&N)    {        min=100000;        for(i=1;i<=N;i++)        {            scanf("%lf%lf",&D,&P);            sum=3.14159*D*D;            if(min>P/sum)            {                min=P/sum;                n=(int)D;            }        }        printf("Menu %d: %d\n",++Case,n);    }return 0;}