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46 lines
1.1 KiB
46 lines
1.1 KiB
// File: binary_search_tree_test.go
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// Created Time: 2022-11-26
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// Author: Reanon (793584285@qq.com)
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package chapter_tree
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import (
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"fmt"
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"testing"
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)
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func TestBinarySearchTree(t *testing.T) {
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bst := newBinarySearchTree()
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nums := []int{8, 4, 12, 2, 6, 10, 14, 1, 3, 5, 7, 9, 11, 13, 15}
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// 請注意，不同的插入順序會生成不同的二元樹，該序列可以生成一個完美二元樹
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for _, num := range nums {
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bst.insert(num)
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}
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fmt.Println("\n初始化的二元樹為:")
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bst.print()
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// 獲取根節點
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node := bst.getRoot()
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fmt.Println("\n二元樹的根節點為:", node.Val)
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// 查詢節點
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node = bst.search(7)
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fmt.Println("查詢到的節點物件為", node, "，節點值 =", node.Val)
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// 插入節點
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bst.insert(16)
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fmt.Println("\n插入節點後 16 的二元樹為:")
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bst.print()
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// 刪除節點
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bst.remove(1)
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fmt.Println("\n刪除節點 1 後的二元樹為:")
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bst.print()
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bst.remove(2)
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fmt.Println("\n刪除節點 2 後的二元樹為:")
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bst.print()
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bst.remove(4)
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fmt.Println("\n刪除節點 4 後的二元樹為:")
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bst.print()
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}
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