程序纠正 c语言 c++

Question

 

Answer 1

供参考：

#include<stdio.h>

int main()
{
    double aver(int [],int ,int*,int*);
    int c1,c2,x[]={0,12,33,-9,-5,27,80,0,54,-63};
    double av;
    av = aver(x,10,&c1,&c2);
    printf("\nc1=%d,c2=%d,aver=%f",c1,c2,av);
    
}

double aver(int a[],int n,int *p1,int *p2)
{
    int i;
    double sum=0;
    *p1=*p2=0;
    for(i=0;i<n;i++)
    {
        sum = sum + a[i];
        if(a[i]>0)(*p1)++;
        else if(a[i]<0)(*p2)++;
    }
    return sum/n;
}