a program to compute the average of the ten numbers 1, 4, 9, ..., 81, 100.

int main()
{
int i;
float sum = 0;
int n = 0;

for(i = 1; i <= 10; i = i + 1)
 {
 sum = sum + i * i;
 n = n + 1;
 }

printf("the average is %f\n", sum / n);

return 0;
}