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大牛们 帮我看看 郁闷 WA了。。。。哪错了?#include<iostream>
#include <stdio.h>
using namespace std;
#define M 500
int a[M];
int b[M];
int c[M];
int main()
{
int n,m,d,min,j,i,k,t;
cin>>n;
while(n--)
{
k=0;
t=0;
cin>>m;
float p=0.000;
for(j=0;j<m;j++)
{
cin>>b[j];
for(i=0;i<2*b[j];i++)
cin>>a[i];
i=0;
c[k]=0;
do{
if(c[k]<a[i])
{
c[k]=a[i];
c[k+1]=a[i+1];
}
i++;
}while(i<2*b[j]);
k+=2;
}
min=c[0];
for(d=2;d<k;d+=2)
{
if(min>c[d])
min=c[d];
}
for(d=1;d<k;d+=2)
t+=c[d];
p=float(min)/t;
printf("%.3lf\n",p);
}
return 0;
}
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