You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
|
/**
|
|
|
|
|
|
* File: binary_tree.swift
|
|
|
|
|
|
* Created Time: 2023-01-18
|
|
|
|
|
|
* Author: nuomi1 (nuomi1@qq.com)
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
import utils
|
|
|
|
|
|
|
|
|
|
|
|
@main
|
|
|
|
|
|
enum BinaryTree {
|
|
|
|
|
|
/* Driver Code */
|
|
|
|
|
|
static func main() {
|
|
|
|
|
|
/* 初始化二叉树 */
|
|
|
|
|
|
// 初始化节点
|
|
|
|
|
|
let n1 = TreeNode(x: 1)
|
|
|
|
|
|
let n2 = TreeNode(x: 2)
|
|
|
|
|
|
let n3 = TreeNode(x: 3)
|
|
|
|
|
|
let n4 = TreeNode(x: 4)
|
|
|
|
|
|
let n5 = TreeNode(x: 5)
|
|
|
|
|
|
// 构建引用指向（即指针）
|
|
|
|
|
|
n1.left = n2
|
|
|
|
|
|
n1.right = n3
|
|
|
|
|
|
n2.left = n4
|
|
|
|
|
|
n2.right = n5
|
|
|
|
|
|
print("\n初始化二叉树\n")
|
|
|
|
|
|
PrintUtil.printTree(root: n1)
|
|
|
|
|
|
|
|
|
|
|
|
/* 插入与删除节点 */
|
|
|
|
|
|
let P = TreeNode(x: 0)
|
|
|
|
|
|
// 在 n1 -> n2 中间插入节点 P
|
|
|
|
|
|
n1.left = P
|
|
|
|
|
|
P.left = n2
|
|
|
|
|
|
print("\n插入节点 P 后\n")
|
|
|
|
|
|
PrintUtil.printTree(root: n1)
|
|
|
|
|
|
// 删除节点 P
|
|
|
|
|
|
n1.left = n2
|
|
|
|
|
|
print("\n删除节点 P 后\n")
|
|
|
|
|
|
PrintUtil.printTree(root: n1)
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
