#include <stdio.h>
#define n 10
int main(void){
/*
从键盘上输入10个整数,求他们的平均值以及正数的个数,并加以输出
*/
int a[n];int i;double sum=0,average=0;int number=0;printf("请输入10个整数,用空格隔开:\n");for(i=0;i<n;i++){scanf("%d",&a[i]);}for(i=0;i<n;i++){sum+=a[i];average=sum/n;if(a[i]>0){number++;}}printf("这%d个数的平均值=%.2lf,正数的个数=%d",n,average,number);return 0;
}