What is Queue in Python? A queue is an abstract data type used for storing and managing data in a specific order. It has a rear (where elements are added) and a front (where elements are removed). Queues can be
1 读题 LeetCode 232E 用栈实现队列 Implement Queue using Stacks 2 Python 解题 正如咱们前面那个问题,list 既可以实现栈,还能实现列表,所以咱这题的代码,和那个队列模拟栈的就很类似了。 ## LeetCode 232 ## Impletement Queue using Stack class MyQueue: def __init__(self): self.l1 = [] ## sta...
popStack[:len(this.popStack) - 1] return top } func (this *MyQueue) Peek() int { // 先进行转移,避免 pop 栈为空 this.transfer() // 返回 pop 栈顶元素 return this.popStack[len(this.popStack) - 1] } func (this *MyQueue) Empty() bool { // 当两个栈都为空是,队列才为空 ret...
MyQueue myQueue = new MyQueue(); myQueue.push(1); // queue is: [1] myQueue.push(2); // queue is: [1, 2] (leftmost is front of the queue) myQueue.peek(); // return 1 myQueue.pop(); // return 1, queue is [2] myQueue.empty(); // return false 提示: 1 <= x <=...
Python解法 Java解法 日期 [LeetCode] 题目地址:https://leetcode.com/problems/implement-queue-using-stacks/ Total Accepted: 42648 Total Submissions: 125482 Difficulty: Easy 题目描述 Implement the following operations of a queue using stacks.
题目 大意是使用queue队列(仅用标准操作)来实现stack的操作。 我的代码 主要思路:使用了双端队列,但默认屏蔽一些功能。使用了popleft() 和append()来实现。 优秀代码(使用类似rotate()方法)... 225. Implement Stack using Queues Implement the following operations of a stack using queues. push(x) -- Push...
self.inQueue.append(x) def pop(self): """ :rtype: nothing """ i=0 while i<len(self.inQueue)-1: self.outQueue.append(self.inQueue[i]) i+=1 self.inQueue=self.outQueue self.outQueue=[] def top(self): """ :rtype: int ...
【LeetCode题解】232_用栈实现队列(Implement-Queue-using-Stacks) 目录 描述 解法一:在一个栈中维持所有元素的出队顺序 思路 入队(push) 出队(pop) 查看队首(peek) 是否为空(empty) Java 实现 Python 实现 解法二:一个栈入,一个栈出 思路 入队(push) 出队(pop) 查看队首(peek) 是否为空(empty) ...
// Java program to implement Queue// using ArrayDeque classimportjava.util.*;publicclassMain{publicstaticvoidmain(String[]args){Queue<Integer>queue=newArrayDeque<>();queue.add(10);queue.add(20);queue.add(30);queue.add(40);queue.add(50);Iterator itr=queue.iterator();System.out.println("Qu...
TheMyCapturedResultReceiverclass implements theCapturedResultReceiverinterface. Theon_captured_result_receivedmethod, running on a native C++ worker thread, returns the processed result to the main thread and stores it in a thread-safe queue. In the main thread, we can check the queue for new resu...