The test shows this failure: expected exit code 0, not 4

Question

#include <cs50.h>
#include <stdio.h>
#include <math.h>

int main(void)
{
    // prompts user for amount of change until user enters a valid number
    float dollars;
    do
    {
        dollars = get_float("Change:");
    }
    while (dollars <= 0);   

    // rounds off change to whole number
    int cents = round(dollars * 100);  

    // calculates change
    int count = 0;
    while (cents / 25 > 0)
    {
        count++;
        cents = cents - 25;
    }
    while (cents / 10 > 0)
    {
        count++;
        cents = cents - 10;
    }
    while (cents / 5 > 0)
    {
        count++;
        cents = cents - 5;
    }
    while (cents / 1 > 0)
    {
        count++;
        cents = cents - 1;
    } 

    printf("%i\n", count);

    return count;

} 

Answer 1

return count;

A return statement ends a program and returns a value to the operating system. Your code is returning the number of coins to the OS when it should be returning 0 to indicate that it completed successfully.