题目：
题解：
class Solution:def getMoneyAmount(self, n: int) -> int:f = [[0] * (n + 1) for _ in range(n + 1)]for i in range(n - 1, 0, -1):for j in range(i + 1, n + 1):f[i][j] = j + f[i][j - 1]for k in range (i, j):f[i][j] = min(f[i][j], k + max(f[i][k - 1], f[k + 1][j]))return f[1][n]
