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Help. Don`t work guard in function

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Your totalAmountBanknoteInPurse function returns an Int but your guard clause uses a bare return. You need to return 0 or some kind of Int value.

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I think the correct version is continue which will skip the current loop since you don't have denomination for this nameBanknote but the loop will continue. With break your loop will end as soon as denomination is not found so it will ignore those still left to process.

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