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

int main (void)
{

       float dollars;

       int counter = 0;

     //a loop to take the user input
    do
     {
       printf("how much change is owed? ");
        dollars = GetFloat();

     }


    while (dollars <= 0 );

    //changing from float to int
    int cent = round(dollars * 100);

     //loops to collect input and give number of coins left.
      while (cent >= 25)
      {
            counter ++;
        cent  = cent - 25;

      }
      while(cent > 10)
      {
              counter++;
          cent = 10 - cent;
      }
      while (cent > 5)
      {
             counter++;
         cent = 5 - cent;

      }
      while (cent > 1)
      {

            counter++;
        cent = 1 - cent;
      }
  printf("%d\n",counter);

}