题目:http://acm.hdu.edu.cn/showproblem.php?pid=2008
#include <stdio.h>
int main()
{
int sum1,sum2,sum3,i,a;
double temp;
while(scanf("%d",&a),a)
{
sum1=sum2=sum3=0;
for(i=0;i<a;i++)
{
scanf("%lf",&temp);
if(temp<0)
{
sum1++;
continue;
}
if(temp==0)
{
sum2++;
continue;
}
if(temp>0)
{
sum3++;
continue;
}
}
printf("%d %d %d\n",sum1,sum2,sum3);
}
return 0;
}