#include <stdio.h>
#include <cs50.h>
#include <math.h>
int main(void)
{

    float cash;
    int cents;


    int counter =0;



    do{

    printf("O hai! How much change is owed?\n");
        cash = get_float();
    }
    while (cash<0);

        // take input the amount of cash owned

    cents =   cash * 100;
    cents = round(cash*100);

     if (cents % 25 == 0)
     {
         counter += round(cents / 25);
         cents = 0;

     }
     else if ( cents != 0 && cents % 25 != cents) {
             counter += round(cents / 25);
             cents = cents % 25;


     }


       if (cents != 0 && cents % 10 == 0)
       {
         counter += round(cents / 10);

        cents = cents % 10;

       }
          else if (cents != 0 &&  cents % 10 != cents)
          {
              counter += round(cents/10);
              cents = cents % 10;


          }
          //cents = 6
         if (cents != 0 && cents % 5 == 0)
         {
           counter += round(cents/5);

         }
           else if ( cents != 0 && cents % 5 != cents)
           {
            counter += round(cents/5);
            cents = cents % 5;

           }

         else
         {
          //counter += cents;

         }
         counter += cents;
 printf("%i\n", counter);
 }