/**
 * A probram to calculate fibonacci numbers and make a nice looking table of them
 * @authod gtowell
 * Created: Feb 2021
 */

#include <stdio.h>
#define HEADER "%6s%9s%9s%9s%9s\n"
#define DATA   "%6d%9d%9d%9d%9.5f\n"

/**
 * DO the fibonacci work
 * @param maxVal -- the largest fibonacci number to calculate
 */
void doTheFibb(int maxVal) {
    int f1 = 1;
    int f2 = 1;
    int n = 2;
    printf(HEADER, "", "fibb", "fibb", "fibb", "golden");
    printf(HEADER, "index", "n -2", "n -1", "n", "mean");
    while (f1 < maxVal)
    {
        n++;
        int f3 = f2 + f1;
        printf(DATA, n, f1, f2, f3, (float)f3 / f2);
        f1 = f2;
        f2 = f3;
    }
}

int main(int argc, char const *argv[])
{
    doTheFibb(100000);
    return 0;
}