from cs50 import get_float
def main():
    n = get_float("Cash owed: ")
    changecalc(n)
    #while (n>0):
        #changecalc(n)
def changecalc(num):
    num = get_float("cash owed: ")

    quarters = 0
    dimes = 0
    nickels = 0
    pennies = 0
    total = 0
    #num = get_float("Cash owed: )./
    rnum = round(num*100)
    while rnum > 0:
        if rnum//25 >= 0:
            quarters = rnum//25
            rnum %= 25
        if rnum//10 >= 0:
            dimes = rnum//10
            rnum %= 10
        if rnum//5 >= 0:
            nickels = rnum//5
            rnum %= 5
        if rnum//1 >= 0:
            pennies = rnum//1
            rnum %= 1
        if rnum < 0:
            print("Please enter a positive number:")
            #changecalc()
    total = dimes + pennies + nickels + quarters
    #return total
    #return total
    print(total)
main()