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@@ -311,7 +311,33 @@ comments: true
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=== "Rust"
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```rust title="deque.rs"
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/* 初始化双向队列 */
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let mut deque: VecDeque<u32> = VecDeque::new();
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/* 元素入队 */
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deque.push_back(2); // 添加至队尾
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deque.push_back(5);
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deque.push_back(4);
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deque.push_front(3); // 添加至队首
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deque.push_front(1);
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/* 访问元素 */
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if let Some(front) = deque.front() { // 队首元素
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}
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if let Some(rear) = deque.back() { // 队尾元素
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}
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/* 元素出队 */
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if let Some(pop_front) = deque.pop_front() { // 队首元素出队
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}
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if let Some(pop_rear) = deque.pop_back() { // 队尾元素出队
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}
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/* 获取双向队列的长度 */
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let size = deque.len();
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/* 判断双向队列是否为空 */
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let is_empty = deque.is_empty();
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```
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=== "C"
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@@ -1394,7 +1420,7 @@ comments: true
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void push(int num, bool isFront) {
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final ListNode node = ListNode(num);
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if (isEmpty()) {
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// 若链表为空,则令 _front,_rear 都指向 node
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// 若链表为空,则令 _front 和 _rear 都指向 node
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_front = _rear = node;
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} else if (isFront) {
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// 队首入队操作
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@@ -278,7 +278,30 @@ comments: true
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=== "Rust"
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```rust title="queue.rs"
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/* 初始化双向队列 */
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// 在 Rust 中使用双向队列作为普通队列来使用
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let mut deque: VecDeque<u32> = VecDeque::new();
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/* 元素入队 */
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deque.push_back(1);
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deque.push_back(3);
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deque.push_back(2);
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deque.push_back(5);
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deque.push_back(4);
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/* 访问队首元素 */
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if let Some(front) = deque.front() {
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}
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/* 元素出队 */
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if let Some(pop) = deque.pop_front() {
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}
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/* 获取队列的长度 */
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let size = deque.len();
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/* 判断队列是否为空 */
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let is_empty = deque.is_empty();
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```
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=== "C"
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