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cash.c
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cash.c
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#include <cs50.h>
#include <stdio.h>
#include <math.h>
int main(void)
{
// declare variable float
float Change;
// declare variable float
// prompt user for input. Re-prompt user until input is a non-negative value.
do
{
Change = get_float("Change owed: ");
}
while (Change < 0); //prompts user again until value is positive.
int coins = round(Change * 100);
//printf("%.2f\n", x);
// count the amount of coins used and store as an interger.
int coinNum = 0;
while (coins >= 25)
{
coinNum ++;
coins = coins - 25;
}
while (coins >= 10)
{
coinNum++;
coins = coins - 10;
}
while (coins >= 5)
{
coinNum++;
coins = coins - 5;
}
while (coins >= 1)
{
coinNum++;
coins = coins - 1;
}
printf("%i\n", coinNum);
}