mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-25 13:06:30 +08:00
1c8b7ef559
* Replace 结点 with 节点 Update the footnotes in the figures * Update mindmap * Reduce the size of the mindmap.png
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
// File: avl_tree_test.go
|
||
// Created Time: 2023-01-08
|
||
// Author: Reanon (793584285@qq.com)
|
||
|
||
package chapter_tree
|
||
|
||
import (
|
||
"fmt"
|
||
"testing"
|
||
|
||
. "github.com/krahets/hello-algo/pkg"
|
||
)
|
||
|
||
func TestAVLTree(t *testing.T) {
|
||
/* 初始化空 AVL 树 */
|
||
tree := newAVLTree()
|
||
/* 插入节点 */
|
||
// 请关注插入节点后，AVL 树是如何保持平衡的
|
||
testInsert(tree, 1)
|
||
testInsert(tree, 2)
|
||
testInsert(tree, 3)
|
||
testInsert(tree, 4)
|
||
testInsert(tree, 5)
|
||
testInsert(tree, 8)
|
||
testInsert(tree, 7)
|
||
testInsert(tree, 9)
|
||
testInsert(tree, 10)
|
||
testInsert(tree, 6)
|
||
|
||
/* 插入重复节点 */
|
||
testInsert(tree, 7)
|
||
|
||
/* 删除节点 */
|
||
// 请关注删除节点后，AVL 树是如何保持平衡的
|
||
testRemove(tree, 8) // 删除度为 0 的节点
|
||
testRemove(tree, 5) // 删除度为 1 的节点
|
||
testRemove(tree, 4) // 删除度为 2 的节点
|
||
|
||
/* 查询节点 */
|
||
node := tree.search(7)
|
||
fmt.Printf("\n查找到的节点对象为 %#v ，节点值 = %d \n", node, node.Val)
|
||
}
|
||
|
||
func testInsert(tree *aVLTree, val int) {
|
||
tree.insert(val)
|
||
fmt.Printf("\n插入节点 %d 后，AVL 树为 \n", val)
|
||
PrintTree(tree.root)
|
||
}
|
||
|
||
func testRemove(tree *aVLTree, val int) {
|
||
tree.remove(val)
|
||
fmt.Printf("\n删除节点 %d 后，AVL 树为 \n", val)
|
||
PrintTree(tree.root)
|
||
}
|