mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-26 02:56:29 +08:00
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
|
// File: array_binary_tree_test.go
|
|||
|
|
// Created Time: 2023-07-24
|
|||
|
|
// Author: Reanon (793584285@qq.com)
|
|||
|
|
|
|||
|
|
package chapter_tree
|
|||
|
|
|
|||
|
|
import (
|
|||
|
|
"fmt"
|
|||
|
|
"testing"
|
|||
|
|
|
|||
|
|
. "github.com/krahets/hello-algo/pkg"
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
func TestArrayBinaryTree(t *testing.T) {
|
|||
|
|
// 初始化二叉树
|
|||
|
|
// 这里借助了一个从数组直接生成二叉树的函数
|
|||
|
|
arr := []any{1, 2, 3, 4, nil, 6, 7, 8, 9, nil, nil, 12, nil, nil, 15}
|
|||
|
|
root := SliceToTree(arr)
|
|||
|
|
fmt.Println("\n初始化二叉树")
|
|||
|
|
fmt.Println("二叉树的数组表示：")
|
|||
|
|
fmt.Println(arr)
|
|||
|
|
fmt.Println("二叉树的链表表示：")
|
|||
|
|
PrintTree(root)
|
|||
|
|
|
|||
|
|
// 数组表示下的二叉树类
|
|||
|
|
abt := newArrayBinaryTree(arr)
|
|||
|
|
|
|||
|
|
// 访问节点
|
|||
|
|
i := 1
|
|||
|
|
l := abt.left(i)
|
|||
|
|
r := abt.right(i)
|
|||
|
|
p := abt.parent(i)
|
|||
|
|
fmt.Println("\n当前节点的索引为", i, "，值为", abt.val(i))
|
|||
|
|
fmt.Println("其左子节点的索引为", l, "，值为", abt.val(l))
|
|||
|
|
fmt.Println("其右子节点的索引为", r, "，值为", abt.val(r))
|
|||
|
|
fmt.Println("其父节点的索引为", p, "，值为", abt.val(p))
|
|||
|
|
|
|||
|
|
// 遍历树
|
|||
|
|
res := abt.levelOrder()
|
|||
|
|
fmt.Println("\n层序遍历为：", res)
|
|||
|
|
res = abt.preOrder()
|
|||
|
|
fmt.Println("前序遍历为：", res)
|
|||
|
|
res = abt.inOrder()
|
|||
|
|
fmt.Println("中序遍历为：", res)
|
|||
|
|
res = abt.postOrder()
|
|||
|
|
fmt.Println("后序遍历为：", res)
|
|||
|
|
}
|