// 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 { // 初始化雙向佇列 const L = std.TailQueue(i32); var deque = L{}; // 元素入列 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); // 新增至佇列尾 deque.append(&node2); deque.append(&node3); deque.prepend(&node4); // 新增至佇列首 deque.prepend(&node5); std.debug.print("雙向佇列 deque = ", .{}); inc.PrintUtil.printQueue(i32, deque); // 訪問元素 var peek_first = deque.first.?.data; // 佇列首元素 std.debug.print("\n佇列首元素 peek_first = {}", .{peek_first}); var peek_last = deque.last.?.data; // 佇列尾元素 std.debug.print("\n佇列尾元素 peek_last = {}", .{peek_last}); // 元素出列 var pop_first = deque.popFirst().?.data; // 佇列首元素出列 std.debug.print("\n佇列首出列元素 pop_first = {},佇列首出列後 deque = ", .{pop_first}); inc.PrintUtil.printQueue(i32, deque); var pop_last = deque.pop().?.data; // 佇列尾元素出列 std.debug.print("\n佇列尾出列元素 pop_last = {},佇列尾出列後 deque = ", .{pop_last}); inc.PrintUtil.printQueue(i32, deque); // 獲取雙向佇列的長度 var size = deque.len; std.debug.print("\n雙向佇列長度 size = {}", .{size}); // 判斷雙向佇列是否為空 var is_empty = if (deque.len == 0) true else false; std.debug.print("\n雙向佇列是否為空 = {}", .{is_empty}); _ = try std.io.getStdIn().reader().readByte(); }