Format array of floating points

#include <stdio.h>

int main() {
    double a[] = {
        10.67, 68.43, 56.55, 92.60, 90.65,
    };
    size_t const a_sz = sizeof(a) / sizeof(*a);

    printf("array elements are:\n");

    for (size_t i = 0; i < a_sz; i++) {
        printf("%8.2f", a[i]);
    }
    putchar('\n');

    return 0;
}