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/**
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* File: binary_tree.swift
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* Created Time: 2023-01-18
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* Author: nuomi1 (nuomi1@qq.com)
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*/
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import utils
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@main
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enum BinaryTree {
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/* Driver Code */
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static func main() {
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/* 初始化二叉树 */
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// 初始化结点
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let n1 = TreeNode(x: 1)
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let n2 = TreeNode(x: 2)
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let n3 = TreeNode(x: 3)
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let n4 = TreeNode(x: 4)
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let n5 = TreeNode(x: 5)
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// 构建引用指向（即指针）
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n1.left = n2
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n1.right = n3
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n2.left = n4
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n2.right = n5
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print("\n初始化二叉树\n")
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PrintUtil.printTree(root: n1)
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/* 插入与删除结点 */
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let P = TreeNode(x: 0)
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// 在 n1 -> n2 中间插入结点 P
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n1.left = P
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P.left = n2
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print("\n插入结点 P 后\n")
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PrintUtil.printTree(root: n1)
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// 删除结点 P
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n1.left = n2
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print("\n删除结点 P 后\n")
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PrintUtil.printTree(root: n1)
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}
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}
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