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42 lines
1.0 KiB
Rust
42 lines
1.0 KiB
Rust
/*
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* File: queue.rs
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* Created Time: 2023-02-05
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* Author: codingonion (coderonion@gmail.com), xBLACKICEx (xBLACKICEx@outlook.com)
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*/
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use hello_algo_rust::include::print_util;
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use std::collections::VecDeque;
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/* Driver Code */
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pub fn main() {
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// 初始化佇列
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let mut queue: VecDeque<i32> = VecDeque::new();
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// 元素入列
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queue.push_back(1);
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queue.push_back(3);
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queue.push_back(2);
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queue.push_back(5);
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queue.push_back(4);
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print!("佇列 queue = ");
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print_util::print_queue(&queue);
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// 訪問佇列首元素
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let peek = queue.front().unwrap();
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println!("\n佇列首元素 peek = {peek}");
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// 元素出列
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let pop = queue.pop_front().unwrap();
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print!("出列元素 pop = {pop}，出列後 queue = ");
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print_util::print_queue(&queue);
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// 獲取佇列的長度
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let size = queue.len();
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print!("\n佇列長度 size = {size}");
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// 判斷佇列是否為空
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let is_empty = queue.is_empty();
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print!("\n佇列是否為空 = {is_empty}");
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}
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