# Definition for a binary tree node. class TreeNode: def __init__(self, x): self.val = x self.left = None self.right = None2. 二叉树的常见操作:tip: 先序,中序,后序遍历可以看作是深度优先搜索,层序遍历看作是广度优先搜索1) 先序遍历 (Preorder Traversal):...
最后一步是运行整个程序,确认我们得到的二叉树图形是正确的。将以下代码放入一个Python文件中(如binary_tree.py): AI检测代码解析 if__name__=="__main__":root=Nonevalues=[5,3,7,2,4,6,8]forvalueinvalues:root=insert(root,value)# 构建二叉树print_tree(root)# 输出二叉树 1. 2. 3. 4. 5. ...
print(root.value,end=' ') 测试 def Dm01(): # 创建二叉树 tree = BinaryTree() # 添加节点 tree.add(0) tree.add(1) tree.add(2) tree.add(3) tree.add(4) tree.add(5) tree.add(6) tree.add(7) tree.add(8) tree.add(9) # 先序遍历 print("\n先序遍历:") tree.pre_traverse(t...
print(node.value, end=' ') if __name__ == '__main__': tree = Binary_Tree() tree.add(Node(1)) tree.add(Node(2)) tree.add(Node(3)) tree.add(Node(4)) tree.add(Node(5)) tree.add(Node(6)) tree.add(Node(7)) tree.add(Node(8)) ...
生成和pretty-print各种类型的二叉树: >>> from binarytree import tree, bst, heap>>> >>># Generate a random binary tree and return its root node>>> my_tree = tree(height=3, is_perfect=False)>>> >>># Generate a random BST and return its root node>>> my_bst = bst(height=3, is...
defdisplay(self,node=None,level=0):ifnot node:node=self.rootprint(" "*level,node.val)forchildinnode.children:self.display(child,level+1) 代码解释:上述代码定义了一个树类Tree,以及一个树节点类TreeNode。类中的方法包括:添加节点add_node,根据给定的父节点值和新节点值,将新节点添加为父节点的子节点...
Step 4: Python Code to Print a Binary Tree Here is the complete code: class Node: def __init__(self, data): self.data = data self.left = None self.right = None def insert(root, data): if root is None: return Node(data) ...
__all__=['Node','tree','bst','heap','build','get_parent'] 二、tree生成一棵普通二叉树 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # coding=utf-8from binarytreeimport*tree0=tree()print('tree0:',tree0)tree1=tree(height=2,is_perfect=True)print('tree1:',tree1)tree2=tree(...
data=None,left=None,right=None):self.data=data# 数据域self.left=left# 左子树self.right=right# 右子树self.dot=Digraph(comment='Binary Tree')# 前序遍历,实现思路:递归defpre_order(self):ifself.dataisnotNone:print(
题源:LeetCode 【Binary Tree 系列最终章】 这篇文章汇总了数据结构二叉树 (Binary Tree) 相关问题的多种解法。针对简单题目,讨论的重点倾向于对Python编程知识的活学活用,和思路的发散与实现。 文中第三题,用…