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...
Implement Queue using Stacks(用两个栈实现队列) 来源:https://leetcode.com/problems/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() -- G...
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() -- Return whether the queue is empty. Notes: You...
用两个栈实现队列:https://leetcode.cn/problems/implement-queue-using-stacks/submissions/564009874/ 🌉stack的模拟实现 从栈的接口中可以看出,栈实际是一种特殊的vector,因此使用vector完全可以模拟实现stack。 stack.c 代码语言:javascript 代码运行次数:0 运行 AI代码解释 namespace own{template<classT>classsta...
push(x); } /** Removes the element from in front of queue and returns that element. */ public int pop() { int size = stack.size(); //保存到临时栈中 Stack<Integer> temp = new Stack<>(); while (size > 0) { temp.push(stack.pop()); size--; } int remove = temp.pop();...
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...
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. ...
A classic interview question. This link has a nice explanation of the idea using two stacks and its amortized time complexity.
shiftStack();if(!_old.empty())return_old.top();return0; }//Return whether the queue is empty.boolempty(void) {return_old.empty() &&_new.empty(); }private: stack<int>_old, _new; }; 用栈来实现队列[LeetCode] Implement Queue using Stacks,如需转载请自行联系原博主。
How to implement the Stack using a Single Queue? The Stack can be easily implemented by making the insertion operation costly. For the push operation i.e. the insertion operation, we will store the count of the elements (n) present in the stack. Then, the new element is inserted at the...