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40 lines
1.1 KiB
40 lines
1.1 KiB
// File: binary_tree.zig
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// Created Time: 2023-01-14
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// Author: sjinzh (sjinzh@gmail.com)
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const std = @import("std");
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const inc = @import("include");
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// Driver Code
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pub fn main() !void {
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// 初始化二叉树
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// 初始化节点
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var n1 = inc.TreeNode(i32){ .val = 1 };
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var n2 = inc.TreeNode(i32){ .val = 2 };
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var n3 = inc.TreeNode(i32){ .val = 3 };
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var n4 = inc.TreeNode(i32){ .val = 4 };
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var n5 = inc.TreeNode(i32){ .val = 5 };
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// 构建引用指向（即指针）
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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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std.debug.print("初始化二叉树\n", .{});
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try inc.PrintUtil.printTree(&n1, null, false);
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// 插入与删除节点
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var p = inc.TreeNode(i32){ .val = 0 };
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// 在 n1 -> n2 中间插入节点 P
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n1.left = &p;
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p.left = &n2;
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std.debug.print("插入节点 P 后\n", .{});
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try inc.PrintUtil.printTree(&n1, null, false);
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// 删除节点
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n1.left = &n2;
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std.debug.print("删除节点 P 后\n", .{});
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try inc.PrintUtil.printTree(&n1, null, false);
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_ = try std.io.getStdIn().reader().readByte();
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}
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