UVA 12230(p333)----Crossing Rivers

#include<cstdio>#include<iostream>using namespace std;int n,d;double l[100],p[100],v[100];int main(){    int k=0;    while(scanf("%d%d",&n,&d)==2&&(n||d))    {        double temp1=0,temp2=0;        k++;        for(int i=0;i<n;i++)        {            scanf("%lf%lf%lf",&p[i],&l[i],&v[i]);            temp1+=2*l[i]/v[i];            temp2+=l[i];        }       printf("Case %d: %.3lf\n\n",k,temp1+d-temp2);    }   return 0;}