*/functionpush($x){while(!$this->empty()) {$this->stack2[] =array_pop($this->stack1); }$this->stack1[] =$x;while(!empty($this->stack2)) {$this->stack1[] =array_pop($this->stack2); } }/** * Removes the element from in front of queue and returns that element. *@re...
在入队时,由于先入的元素处于输入栈inStack的栈底,因此,为了能够弹出栈底的元素实现出队操作,需要将输入栈inStack中的元素弹出并压入到输出栈outStack中。此时,输出栈outStack中元素的出栈顺序和队列的出队顺序是一致的。只要输出栈outStack中还有元素,每次执行出队操作只需要将栈outStack的栈顶元素弹出即可。当输出...
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...
typeMyQueuestruct{// 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}funcConstructor()MyQueue{returnMyQueue{}}func(this*MyQueue)Push(xint){this.pushStack=append(this.pushStack,x)}func(this*MyQ...
/* * @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 ...
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...
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。
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. ...