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哪位大牛帮忙看看哪里错了,怎么老是WR呢?????#include<stdio.h>
#include<math.h>
int commonfactor(int a, int b)
{
int n;
while(a!=0)
{
n=b%a; b=a; a=n;
}
if(b==1) return 1;
else return 0;
}
int main()
{
int n;
while(scanf("%d", &n), n>0)
{
int m[50], i, j, sum=0;
double x;
for(i=0; i<n; i++)
scanf("%d", &m[i]);
for(i=0; i<n-1; i++)
for(j=i+1; j<n; j++)
if(commonfactor(m[i], m[j]))
sum++;
if(sum>0)
{
x = pow(3.0*n*(n-1)/sum, 0.5);
printf("%.6lf\n", x);
}
else printf("No estimate for this data set.\n");
}
return 0;
}
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