零钱兑换

def solve():
    def coinChange(____):
        dp = [float(____)] * (____)
        dp[____] = ____
        for i in range(____, amount + ____):
            for coin in coins:
                if i >= coin:
                    dp[i] = min(____)
        return dp[amount] if dp[amount] != float(____) else -____
    print(coinChange(____))