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44 lines
1.2 KiB
44 lines
1.2 KiB
// File: stack.zig
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// Created Time: 2023-01-08
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// Author: codingonion (coderonion@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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// 初始化栈
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// 在 zig 中，推荐将 ArrayList 当作栈来使用
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var stack = std.ArrayList(i32).init(std.heap.page_allocator);
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// 延迟释放内存
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defer stack.deinit();
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// 元素入栈
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try stack.append(1);
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try stack.append(3);
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try stack.append(2);
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try stack.append(5);
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try stack.append(4);
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std.debug.print("栈 stack = ", .{});
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inc.PrintUtil.printList(i32, stack);
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// 访问栈顶元素
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var peek = stack.items[stack.items.len - 1];
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std.debug.print("\n栈顶元素 peek = {}", .{peek});
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// 元素出栈
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var pop = stack.pop();
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std.debug.print("\n出栈元素 pop = {}，出栈后 stack = ", .{pop});
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inc.PrintUtil.printList(i32, stack);
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// 获取栈的长度
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var size = stack.items.len;
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std.debug.print("\n栈的长度 size = {}", .{size});
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// 判断栈是否为空
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var is_empty = if (stack.items.len == 0) true else false;
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std.debug.print("\n栈是否为空 = {}", .{is_empty});
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_ = try std.io.getStdIn().reader().readByte();
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}
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