# while loops with arrays

• 02-04-2003
volk
while loops with arrays
Code:

```#include <stdio.h> #include <math.h> float average(int sum, int array_size); float std(int sum, int array_size);                 int main(void) {                 int a[3] = {0};         int b[3] = {0};                 int sum = 0;         int i = 0;         float av;         float st;         float av2;         float st2;                 printf("Enter three numbers\n");                 while (scanf("%d", &a[i]) !=EOF)         {                 sum += a[i++];                 if (i == 3)                         break;         }         av = average(sum, i);         st = std(sum, i);         printf("\nThe average of the numbers you entered is %.2f\n",av);         printf("\nThe standard deviation is %.2f\n",st);         printf("\nEnter three more numbers\n");         while (scanf("%d", &b[i]) !=EOF)         {                 sum += b[i++];                 if (i == 3)                         break;         }         av2 = average(sum, i);         st2 = std(sum, i);         printf("\nThe average of the numbers you entered is %.2f\n",av2);         printf("\nThe standard deviation is %.2f\n",st2);         return 0; } float average(int sum, int array_size) {         return (float) sum/array_size; } float std(int sum, int array_size) {         return (float) sqrt((pow(sum,2) + pow(sum/3,2))/array_size - 1); }```
Why isn't the second while loop working properly?
• 02-04-2003