mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-27 12:56:28 +08:00
38 lines
815 B
Dart
38 lines
815 B
Dart
|
/**
|
||
|
|
* File: binary_tree.dart
|
||
|
|
* Created Time: 2023-04-03
|
||
|
|
* Author: liuyuxin (gvenusleo@gmail.com)
|
||
|
|
*/
|
||
|
|
|
||
|
|
import '../utils/print_util.dart';
|
||
|
|
import '../utils/tree_node.dart';
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
/* 初始化二元樹 */
|
||
|
|
// 舒適化節點
|
||
|
|
TreeNode n1 = TreeNode(1);
|
||
|
|
TreeNode n2 = TreeNode(2);
|
||
|
|
TreeNode n3 = TreeNode(3);
|
||
|
|
TreeNode n4 = TreeNode(4);
|
||
|
|
TreeNode n5 = TreeNode(5);
|
||
|
|
// 構建節點之間的引用（指標）
|
||
|
|
n1.left = n2;
|
||
|
|
n1.right = n3;
|
||
|
|
n2.left = n4;
|
||
|
|
n2.right = n5;
|
||
|
|
print("\n初始化二元樹\n");
|
||
|
|
printTree(n1);
|
||
|
|
|
||
|
|
/* 插入與刪除節點 */
|
||
|
|
TreeNode p = TreeNode(0);
|
||
|
|
// 在 n1 -> n2 中間插入節點 p
|
||
|
|
n1.left = p;
|
||
|
|
p.left = n2;
|
||
|
|
print("\n插入節點 P 後\n");
|
||
|
|
printTree(n1);
|
||
|
|
// 刪除節點 P
|
||
|
|
n1.left = n2;
|
||
|
|
print("\n刪除節點 P 後\n");
|
||
|
|
printTree(n1);
|
||
|
|
}
|