Python DP Solution -- Coin Change


  • 6
    C
    class Solution(object):
        def coinChange(self, coins, amount):
            """
            :type coins: List[int]
            :type amount: int
            :rtype: int
            """
            rs = [amount+1] * (amount+1)
            rs[0] = 0
            for i in xrange(1, amount+1):
                for c in coins:
                    if i >= c:
                        rs[i] = min(rs[i], rs[i-c] + 1)
    
            if rs[amount] == amount+1:
                return -1
            return rs[amount]

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