[Message Deleted]

Well, think about it logically. You start with an amount, and you need to split it down. You have only certain denominations available, right ? So, if you have $53.32, what's the highest denomination that goes into that ? If it's $20, then you would have $33.32 left. So, what's the highest that goes into that ? $20, so you now have $13.32. That's the sort of process your code will go through, subtracting whatever amount represents the biggest note or coin that can be put on the pile.