You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.8 KiB
52 lines
1.8 KiB
// File: deque.zig
|
|
// Created Time: 2023-01-15
|
|
// Author: codingonion (coderonion@gmail.com)
|
|
|
|
const std = @import("std");
|
|
const inc = @import("include");
|
|
|
|
// Driver Code
|
|
pub fn main() !void {
|
|
// 初始化双向队列
|
|
const L = std.TailQueue(i32);
|
|
var deque = L{};
|
|
|
|
// 元素入队
|
|
var node1 = L.Node{ .data = 2 };
|
|
var node2 = L.Node{ .data = 5 };
|
|
var node3 = L.Node{ .data = 4 };
|
|
var node4 = L.Node{ .data = 3 };
|
|
var node5 = L.Node{ .data = 1 };
|
|
deque.append(&node1); // 添加至队尾
|
|
deque.append(&node2);
|
|
deque.append(&node3);
|
|
deque.prepend(&node4); // 添加至队首
|
|
deque.prepend(&node5);
|
|
std.debug.print("双向队列 deque = ", .{});
|
|
inc.PrintUtil.printQueue(i32, deque);
|
|
|
|
// 访问元素
|
|
var peek_first = deque.first.?.data; // 队首元素
|
|
std.debug.print("\n队首元素 peek_first = {}", .{peek_first});
|
|
var peek_last = deque.last.?.data; // 队尾元素
|
|
std.debug.print("\n队尾元素 peek_last = {}", .{peek_last});
|
|
|
|
// 元素出队
|
|
var pop_first = deque.popFirst().?.data; // 队首元素出队
|
|
std.debug.print("\n队首出队元素 pop_first = {}，队首出队后 deque = ", .{pop_first});
|
|
inc.PrintUtil.printQueue(i32, deque);
|
|
var pop_last = deque.pop().?.data; // 队尾元素出队
|
|
std.debug.print("\n队尾出队元素 pop_last = {}，队尾出队后 deque = ", .{pop_last});
|
|
inc.PrintUtil.printQueue(i32, deque);
|
|
|
|
// 获取双向队列的长度
|
|
var size = deque.len;
|
|
std.debug.print("\n双向队列长度 size = {}", .{size});
|
|
|
|
// 判断双向队列是否为空
|
|
var is_empty = if (deque.len == 0) true else false;
|
|
std.debug.print("\n双向队列是否为空 = {}", .{is_empty});
|
|
|
|
_ = try std.io.getStdIn().reader().readByte();
|
|
}
|