我正在尝试在 Python 中实现递归算法来遍历二叉树并按顺序打印出所有节点。但是,当我运行我的代码时,出现“超出最大递归深度”错误。
class TreeNode:
def __init__(self, val=0, left=None, right=None):
self.val = val
self.left = left
self.right = right
def inorder_traversal(root):
if not root:
return []
result = []
result += inorder_traversal(root.left)
result.append(root.val)
result += inorder_traversal(root.right)
return result
root = TreeNode(1)
root.left = TreeNode(2)
root.right = TreeNode(3)
root.left.left = TreeNode(4)
root.left.right = TreeNode(5)
print(inorder_traversal(root))
设置递归限制。
import sys
sys.setrecursionlimit(n) # default is 1000, you probably want something like 3000