text: from cs50 import get_float
  
  c = 0
  # Get owe...
  print("Write down the amount you owe to calculate the number of coins like ($.¢)... ")
  o = 0
  while True:
      o = get_float("Owed: ")
      if o > 0:
          break
  # rounding number.
  ce = round(o * 100)
  # Quarter.
  while 25 <= ce:
      ce -= 25
      c += 1
  # Dime.
  while 10 <= ce:
      ce -= 10
      c += 1
  # Nickel.
  while 5 <= ce:
      ce -= 5
      c += 1
  # Penny.
  while 1 <= ce:
      ce -= 1
      c += 1
  # End!
  print(c)