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update rust codes for hash_map, binary_search, bubble_sort, stack, queue (#330)
* update rust codes * update rust codes * update rust codes * update and add rust codes for hash_map, binary_search, bubble_sort * update and add rust codes for hash_map, binary_search, bubble_sort * add rust codes for chapter stack * add rust codes for chapter queue * add rust codes for chapter deque
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39
codes/rust/chapter_stack_and_queue/queue.rs
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39
codes/rust/chapter_stack_and_queue/queue.rs
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/**
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* File: queue.rs
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* Created Time: 2023-02-05
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* Author: sjinzh (sjinzh@gmail.com)
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*/
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use std::collections::LinkedList;
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/* Driver Code */
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pub fn main() {
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// 初始化队列
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let mut queue: LinkedList<i32> = LinkedList::new();
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// 元素入队
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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!("队列 queue = ");
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inc::print_util::print_queue(&queue);
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// 访问队首元素
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let peek = queue.front().unwrap();
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println!("\n队首元素 peek = {peek}");
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// 元素出队
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let poll = queue.pop_front().unwrap();
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print!("出队元素 poll = {poll},出队后 queue = ");
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inc::print_util::print_queue(&queue);
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// 获取队列的长度
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let size = queue.len();
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print!("\n队列长度 size = {size}");
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/* 判断队列是否为空 */
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let is_empty = queue.is_empty();
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print!("\n队列是否为空 = {is_empty}");
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}
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