#include <stdio.h>              /* includes stdio.h i/o */
 
void pause(void);               /* declares function */
 
int main(void)
{
    double due, given, bal = 0;     /* sets double float variables */
    double tens, fives, ones, quarters, dimes, nickels, pennies = 0;
    printf("\n\n\tHow much do you owe?\n\n\t\tAmount : ");
            /* asks for debt */
    scanf("%lf", &due);         /* accepts user's input */
    printf("\n\n\tHow much will you pay?\n\n\t\tAmount : ");
            /* asks user how much they will give to pay for the amount */
    scanf("%lf", &given);       /* accepts user's input */
    bal = given - due;          /* calculates the user's change */
    printf("\n\nAmount Due     = $%.2lf", due);        /* displays transaction info */
    printf("\n\nAmount Given   = $%.2lf", given);
    printf("\n\nAmount Balance = $%.2lf", bal);
    printf("\n\n\tHere is your Change.");
    if((bal / 10) >= 1)         /* if can be divided by bill, determines
                                    how many bills */
    {
        tens = bal / 10;
        bal = bal % 10;        
    }  
    if((bal / 5) >= 1)         /* if can be divided by bill, determines
                                    how many bills */
    {
        fives = bal / 5;
        bal = bal % 5;
    }
    if((bal / 1) >= 1)         /* if can be divided by bill, determines
                                    how many bills */
    {
        ones = bal / 1;
        bal = bal % 1;
    }
    if((bal / .25) >= 1)         /* if can be divided by coin, determines
                                    how many coins */
    {
        quarters = bal / .25;
        bal = bal % .25;
    }  
    if((bal / .10) >= 1)         /* if can be divided by coin, determines
                                    how many coins */
    {
        dimes = bal / .10;
        bal = bal % .10;
    }    
    if((bal / .05) >= 1)         /* if can be divided by coin, determines
                                    how many coins */
    {
        nickels = bal / .05;
        bal = bal % .05;
    }
    if((bal / .01) >= 1)         /* if can be divided by coin, determines
                                    how many coins */
    {
        pennies = bal / .01;
        bal = bal % .01;
    }     
    printf("\nTens     = %d", tens);         /* prints change resulsts */
    printf("\nFives    = %d", fives);
    printf("\nOnes     = %d", ones);
    printf("\nQuarters = %d", quarters);
    printf("\nDimes    = %d", dimes);
    printf("\nNickels  = %d", nickels);
    printf("\nPennies  = %d", pennies);
    pause();                    /* pauses */
    return (0);
}
void pause(void)                /* tells what pause does */
{
    char ch;                    /* sets character variable */
    printf("\n\nPress \'Enter\' to exit.");
    scanf("%c", &ch);           /* waits for 'enter' key */
    scanf("%c", &ch);
}