判断create_tree()函数构造的树是什么类型
判断以下create_tree()函数构造的树是什么类型?
class TreeNode:
def __init__(self, x):
self.val = x
self.left = None
self.right = None
def create_tree():
root = TreeNode(1)
root.left = TreeNode(2)
root.right = TreeNode(3)
root.left.left = TreeNode(4)
root.left.right = TreeNode(5)
return root
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