1. Queue Array Basic OperationsWrite a C program to implement a queue using an array. Programs should contain functions for inserting elements into the queue, displaying queue elements, and checking whether the
// 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...
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. Example: MyQueue queue = new MyQueue()...
*/functionpush($x){while(!$this->empty()) {$this->stack2[] =array_pop($this->stack1); }$this->stack1[] =$x;while(!empty($this->stack2)) {$this->stack1[] =array_pop($this->stack2); } }/** * Removes the element from in front of queue and returns that element. *@re...
Here, we will implement a Linear Queue using Array. Linear Queue follows FIFO (First In First Out) property, which means first inserted elements, deleted first. In linear queue there are two pointers are used:FRONT: It points to the location from where we can delete an item from the ...
225. Implement Stack using Queues 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 ...
【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) ...
queue and returns that element.*/21func pop() ->Int {22let last = array.first!23array.remove(at:0)24returnlast25}2627/** Get the front element.*/28func peek() ->Int {29returnarray.first!30}3132/** Returns whether the queue is empty.*/33func empty() ->Bool {34returnarray....
225. Implement Stack using Queues Solution Analysis: Take advantage of the characteristics of the js array, where the top of the stack is at the head of the array. Code: /** * Initialize your data structure here. */ var MyQueue = function() { this.queue = [] }; /** * Push elem...
}//Return whether the queue is empty.publicbooleanempty() {returnstack.isEmpty(); } } 225. Implement Stack using Queues Implement the following operations of a stack using queues. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. ...