数值统计
http://acm.hdu.edu.cn/showproblem.php?pid=2008
1 #include<stdio.h>
2 int main()
3 {int i,n,a,b,c;double x[100];
4 while(scanf("%d",&n)!=EOF)
5 {
6 if(n==0||n>=100) continue;
7 a=0;b=0;c=0;
8 for(i=0;i<n;i++)
9 scanf("%lf",&x[i]);
10 for(i=0;i<n;i++)
11 {if(x[i]<0) a=a+1;
12
13 if(x[i]==0) b=b+1;
14
15 if(x[i]>0) c=c+1;
16 }
17 printf("%d %d %d\n",a,b,c);
18 }
19 }