type MyQueue struct { // push 栈维护已放入的元素 pushStack []int // pop 栈维护待移除的元素。 // 将 push 栈中的元素放入 pop 栈时,就将先进后出转换为了先进先出 popStack []int } func Constructor() MyQueue { return MyQueue{} } func (this *MyQueue) Push(x int) { this.pushStack ...
}/** Push element x to the back of queue. */publicvoidpush(intx){if(inStack.empty()) { front = x; } inStack.push(x); }/** Removes the element from in front of queue and returns that element. */publicintpop(){if(empty()) {thrownewIllegalArgumentException("[ERROR] The queue ...
StackIn: 作为缓存区,存储着待处理的元素 StackOut:作为输出栈,它负责提供队列头部的元素 同步异步操作 当StackOut中已有数据时,出队操作是异步的,可以立即执行,StackIn依旧可以执行它的入栈操作 当StackIn为空时,出队操作是同步的,需要等待stackIn中的所有元素转移至stackOut才能进行后续操作 判空状态 双栈均为空...
## LeetCode 232## Impletement Queue using StackclassMyQueue:def__init__(self):self.l1=[]## stack 1 = l1self.l2=[]## stack 2 = l2defpush(self,x:int)->None:## Push x onto queueself.l1.append(x)## The right of the list = the top of the stack = the back of the queuedef...
Depending on your language, stack may not be supported natively. You may simulate a stack by using a list or deque (double-ended queue), as long as you use only standard operations of a stack. You may assume that all operations are valid (for example, no pop or peek operations will be...
Depending on your language, stack may not be supported natively. You may simulate a stack by using a list or deque (double-ended queue), as long as you use only standard operations of a stack. You may assume that all operations are valid (for example, no pop or peek operations will be...
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。
Depending on your language, stack may not be supported natively. You may simulate a stack by using a list or deque (double-ended queue), as long as you use only standard operations of a stack. You may assume that all operations are valid (for example, no pop or peek operations will be...
/* * @lc app=leetcode id=232 lang=javascript * * [232] Implement Queue using Stacks *//** * Initialize your data structure here. */var MyQueue = function () { // tag: queue stack array this.stack = []; this.helperStack = [];};/** * Push element x to the back of ...
A classic interview question.This linkhas a nice explanation of the idea using two stacks and its amortized time complexity. I use the same idea in my code, which is as follows. 1classQueue {2public:3//Push element x to the back of queue.4voidpush(intx) {5stack1.push(x);6}78//...