#include<stdio.h> void main() { int x,n=0; float sum = 0; while(1) { scanf("%d",&x); if(x<0) break; sum += x; n++; } }
2
#include<stdio.h>
void main()
{
int x,n=0;
float sum = 0;
while(1)
{
scanf("%d",&x);
if(x<0)
break;
sum += x;
n++;
}
printf("Average = %f",sum/n);
}