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cash-machine's Introduction

Cash Machine

The problem

Develop a solution that simulate the delivery of notes when a client does a withdraw in a cash machine. The basic requirements are the follow:

  • Always deliver the lowest number of possible notes;
  • It's possible to get the amount requested with available notes;
  • The client balance is infinite;
  • Amount of notes is infinite;
  • Available notes $ 100,00; $ 50,00; $ 20,00 e $ 10,00

Examples

Entry: 30.00
Result: [20.00, 10.00]
Entry: 80.00
Result: [50.00, 20.00, 10.00]
Entry: 125.00
Result: throw NoteUnavailableException
Entry: -130.00
Result: throw InvalidArgumentException
Entry: NULL
Result: [Empty Set]

cash-machine's People

Contributors

fernandocamargo avatar

Watchers

 avatar James Cloos avatar

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