Implement a first in first out (FIFO) queue using only two stacks. The implemented queue should support all the functions of a normal queue (push, peek, pop, and empty). Implement the MyQueue class: void push(int x) Pushes element x to the back of the queue. int pop() Removes the...
*/functionpop(){if(empty($this->stack2)) {while(!empty($this->stack1)) {$this->stack2[] =array_pop($this->stack1); } }returnarray_pop($this->stack2); }/** * Get the front element. *@returnInteger */functionpeek(){if(empty($this->stack2)) {while(!empty($this->stack1)...
为了实现这种效果,在入队时,首先将栈1(假设栈1中保存所有的元素)中所有的元素弹出并压入栈2中,接着将新的元素压入栈1中,最后再将栈2中的所有弹出并压入栈1中。详细的步骤如图1所示。 图1:将一个元素入队 代码(Java)实现如下。 publicvoidpush(intx){// 将栈1中的所有元素弹出并压入栈2中while(!s1....
Implement Queue using Stacks 两个栈实现队列 leetcode oj文章分类Html/CSS前端开发 Implement Queue using Stacks Implement the following operations of a queue using stacks. push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front of queue. peek() -- Get ...
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 StackclassMyQueue:def__init__(self):self.l1=[]## stack 1 = l1se...
[LeetCode] 232. Implement Queue using Stacks 用栈模拟队列。同理参考影子题225题。 题干即是题意,用栈实现队列的几个函数,例子, Example: MyQueue queue = new MyQueue(); queue.push(1); queue.push(2); queue.peek(); // returns 1 queue.pop(); // returns 1...
Implement the following operations of a queue using stacks. push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front of queue. peek() -- Get the front element. empty() -- Return whether the queue is empty. ...
LeetCode 232. Implement Queue using Stacks 简介:使用栈实现队列的下列操作:push(x) -- 将一个元素放入队列的尾部。pop() -- 从队列首部移除元素。peek() -- 返回队列首部的元素。empty() -- 返回队列是否为空。 Description Implement the following operations of a queue using stacks....
今天介绍的是LeetCode算法题中Easy级别的第57题(顺位题号是232)。使用栈实现队列的以下操作。 push(x) - 将元素x推送到队列的后面。 pop() - 从队列前面删除元素。 peek() - 获取前面的元素。 empty() - 返回队列是否为空。 例如: MyQueue queue = new MyQueue(); ...
Code Issues Pull requests GoDS (Go Data Structures) - Sets, Lists, Stacks, Maps, Trees, Queues, and much more gomapgolangsetlisttreedata-structureavl-treestackqueueiteratorsortred-black-treeenumerablebinary-heapb-tree UpdatedJul 22, 2024 ...