You have to develop an Automated Teller Machine (ATM) allowing cash withdrawals.
The ATM main features:
- it allows cash withdrawals with the following denominations:
5 €,10 €,20 €,50 € - it keeps track of the currently available amount of banknotes on the different denominations (e.g. how many 20 € notes are still available in the ATM)
- it raises an error condition if the notes are not enough to complete the requested cash withdrawal
- it gives priority to the higher value denominations first before using the smaller denominations
- it can be configured to support different denomination sizes and currencies (e.g.
5 $,10 $,20 $,50 $,100 $)
Credits to Piergiuliano Bossi for the original kata.