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36 lines
868 B
JavaScript
36 lines
868 B
JavaScript
/**
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* File: binary_tree.js
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* Created Time: 2022-12-04
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* Author: IsChristina (christinaxia77@foxmail.com)
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*/
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const { TreeNode } = require('../modules/TreeNode');
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const { printTree } = require('../modules/PrintUtil');
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/* 二分木を初期化 */
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// ノードを初期化
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let n1 = new TreeNode(1),
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n2 = new TreeNode(2),
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n3 = new TreeNode(3),
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n4 = new TreeNode(4),
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n5 = new TreeNode(5);
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// ノード間の参照（ポインタ）を構築する
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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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console.log('\n二分木を初期化\n');
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printTree(n1);
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/* ノードの挿入と削除 */
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const P = new TreeNode(0);
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// n1 -> n2 の間にノード P を挿入
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n1.left = P;
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P.left = n2;
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console.log('\nノード P を挿入後\n');
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printTree(n1);
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// ノード P を削除
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n1.left = n2;
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console.log('\nノード P を削除後\n');
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printTree(n1);
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