问题描述: 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
Problem: 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 fron
题目 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. e
40. Implement Queue by Two Stacks / 225. Implement Stack using Queues 本题难度: Medium/EasyTopic: Data Structure - stack/queue Description As the title described, you should only use two stacks to impl
题目地址:https://leetcode.com/submissions/detail/88638615/,https://leetcode.com/submissions/detail/88638372/ 无论是用栈实现队列还是用队列实现栈,在Java中提供给了我们LinkedList这样一个容器,它的操作足以满足我们模拟队列与栈的操作。 队列模拟栈 public class Imple