#include <stdio.h>
int main(int argc, char *argv[])
{
    int i,x,s,c,n=0;
    float sum=0;
    scanf("%d\n",&x);
    if(x==0)
    {
        printf("average = 0\n");
        printf("count = 0\n");
        }
    else
    {
        int a[x];
        for(i=0;i<x;i++)
        {scanf("%d",&a[i]);}
        for(s=0;s<x;s++)
            {if(a[s]>=60)
                   {n++;}}
        for(c=0;c<x;c++)
            {sum=sum+a[c];}
    printf("average = %.1f\n",sum/x);
    printf("count = %d\n",n) ;}
}

    //scanf("%d\n",&x);
    scanf("%d",&x);

...明白了..非常感谢