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Retranslate the complete English edition from Simplified Chinese (#2010)
* Retranslate the complete English edition from Simplified Chinese * Polish three English explanations after reader-focused review
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46
en/codes/zig/chapter_stack_and_queue/queue.zig
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46
en/codes/zig/chapter_stack_and_queue/queue.zig
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// File: queue.zig
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// Created Time: 2023-01-15
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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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// Initialize the queue
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const L = std.TailQueue(i32);
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var queue = L{};
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// Enqueue elements
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var node1 = L.Node{ .data = 1 };
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var node2 = L.Node{ .data = 3 };
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var node3 = L.Node{ .data = 2 };
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var node4 = L.Node{ .data = 5 };
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var node5 = L.Node{ .data = 4 };
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queue.append(&node1);
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queue.append(&node2);
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queue.append(&node3);
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queue.append(&node4);
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queue.append(&node5);
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std.debug.print("Queue queue = ", .{});
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inc.PrintUtil.printQueue(i32, queue);
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// Access the front element
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var peek = queue.first.?.data;
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std.debug.print("\nFront element peek = {}", .{peek});
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// Dequeue an element
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var pop = queue.popFirst().?.data;
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std.debug.print("\nDequeued element pop = {}; after dequeueing, queue = ", .{pop});
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inc.PrintUtil.printQueue(i32, queue);
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// Get the queue size
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var size = queue.len;
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std.debug.print("\nQueue size = {}", .{size});
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// Check whether the queue is empty
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var is_empty = if (queue.len == 0) true else false;
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std.debug.print("\nIs the queue empty? {}", .{is_empty});
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_ = try std.io.getStdIn().reader().readByte();
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}
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