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...
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首发于Leetcode刷题笔记 切换模式写文章 登录/注册【陪伴式刷题】栈和队列|232.用栈实现队列(Implement Queue using Stacks) 秦她的菜 吉利 程序员题目描述 英文版描述 Implement a first in first out (FIFO) queue using only two stacks. The implemented queue should support all the functions of ...
1classMyQueue {2public:3/** Initialize your data structure here.*/4MyQueue() {56}78/** Push element x to the back of queue.*/9voidpush(intx) {10stkPush.push(x);11}1213/** Removes the element from in front of queue and returns that element.*/14intpop() {15intval;16if(stkPo...
https://leetcode.com/problems/implement-queue-using-stacks/description/ 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. ...
原题链接:https://leetcode.com/problems/implement-queue-using-stacks/ 这道题有个需要注意的地方是只能用stack的基本特性来实现队列,所以必须建立两个stack来实现push一个元素在队列里的操作。 第一个方法中pop只需要o(1), 而push需要o(n) classMyQueue(object):def__init__(self):""" ...
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. ...
Implement Queue using Stacks 解题报告:这个就是考虑Queue 和 Stack的输入输出数据结构的不同, 我看LeetCode上还有大神直接用peek peek就完事了的, 我这个就是比较笨的方法。 首先确定要有两个stack存数据, 我是设定一个stack 存有所有的数据, 基本上这个stack 就是个queue 。 再回来考虑queue和stack 的区别, ...
Leetcode 232 Implement Queue using Stacks 和 231 Power of Two,1.232ImplementQueueusingStacks1.1问题描写叙述使用栈模拟实现队列。模拟实现例如以下操作:push(x).将元素x放入队尾。pop().移除队首元素。peek().获取队首元素。empty().推断队列是否为空。注意:仅仅能
(https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/) | [C++](./C++/maximum-xor-of-two-numbers-in-an-array.cpp) [Python](./Python/maximum-xor-of-two-numbers-in-an-array.py) | _O(n)_ | _O(1)_ | Medium || 461 | [Hamming Distance](https://leetcode.com...