= 数值统计 =
http://acm.hdu.edu.cn/showproblem.php?pid=2008
{{{#!cplusplus
#include<stdio.h>
int main()
{int i,n,a,b,c;double x[100];
    while(scanf("%d",&n)!=EOF)
         {
           if(n==0||n>=100) continue;
           a=0;b=0;c=0;
         for(i=0;i<n;i++)
            scanf("%lf",&x[i]);
         for(i=0;i<n;i++)
            {if(x[i]<0) a=a+1;

            if(x[i]==0) b=b+1;

            if(x[i]>0) c=c+1;
            }
         printf("%d %d %d\n",a,b,c);
         }
}
}}}