| from typing import List | |
| class Solution: | |
| def coinChange(self, coins: List[int], amount: int) -> int: | |
| dp = [amount + 1] * (amount + 1) | |
| dp[0] = 0 | |
| for i in range(1, amount + 1): | |
| for c in coins: | |
| if i >= c: | |
| dp[i] = min(dp[i - c] + 1, dp[i]) | |
| if dp[amount] == amount + 1: | |
| return -1 | |
| return dp[amount] | |