Created
September 27, 2012 17:01
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| def countChange (money: Int, coins: List[Int]): Int = { | |
| def count(money: Int, coins: List[Int]): Int = { | |
| if (coins.tail.isEmpty) { | |
| if (money % coins.head == 0) 1 | |
| else 0 | |
| } | |
| else if (money == 0) 1 | |
| else if (money < coins.head) count(money, coins.tail) | |
| else count(money - coins.head, coins) + count(money, coins.tail) | |
| } | |
| val sortedCoins = coins.sorted.reverse | |
| if (coins.isEmpty || money < sortedCoins.last) 0 | |
| else count(money, sortedCoins) | |
| } |
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