#include<stdio.h>int main(){? ?int s,count;? ?scanf("%d %d",&s,&count);? ?float avg;? ?avg = s / count;? ?printf("The average value is %.3f\n",avg);? ?return 0;}#include<stdio.h>int main(){? ? printf("Input some int value (end by 0):\n");? ? int i,s=0,count=0;? ? int flag=1;? ? while(flag){? ? ? ? scanf("%d",&i);? ? ? ? if(i == 0) break;? ? ? ? s+=i;? ? ? ? count++;? ? }? ? printf("%d %d\n",s,count);? ? return 0;}