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...
LC.232. Implement Queue using Stacks(use two stacks) 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. ...
Initialize your data structure here. """#why use two stack hereself.s1=[]self.s2=[]defpush(self,x):""" Push element x to the back of queue. :type x: int :rtype: None """#把s1中的内容挨个pop出去,每pop一个向s2中append一个#s1为空之后将新加进来的元素放到stack的最底部#再重复第...
Implement a MyQueue class which implements a queue using two stacks. buffer用来存放正确顺序的数字,stack用来存放新加的数字。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 public class MyQueue { Stack<Integer> stack = new Stack<Integer>(); Stack<...
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, ...
In which case, we'll have to use a circular array or implement two stacks in the given array and then implement a queue using the two stacks.
(https://github.com/kamyu104/LeetCode#math) * [Two Pointers](https://github.com/kamyu104/LeetCode#two-pointers) * [Sort](https://github.com/kamyu104/LeetCode#sort) * [Recursion](https://github.com/kamyu104/LeetCode#recursion) * [Binary Search](https://github.com/kamyu104/LeetCode#...
if(!stack2.empty()){ returnstack2.pop(); }else{ while(stack1.size()>0){ stack2.push(stack1.pop()); } if(!stack2.empty()){ returnstack2.pop(); }elsereturn-1; } // write your code here } publicinttop(){ if(!stack2.empty()){ ...
LeetCode 232. 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 the front element. empty(......