给出用python实现的MCTS算法代码

我可以给你一个简单的python实现的MCTS算法的例子：```
#!/usr/bin/env pythonimport mathclass Node:
def __init__(self, state, parent=None):
self.state = state
self.parent = parent
self.children = []
self.visits = 0
self.reward = 0 def add_child(self, child_state):
child = Node(child_state, self)
self.children.append(child) def update(self, reward):
self.visits += 1
self.reward += rewarddef uct_search(root):
while not root.is_terminal():
best_child = select_child(root)
reward = best_child.sim