1classMyQueue(object):2i_stack =[]3o_stack =[]4def__init__(self):5"""6Initialize your data structure here.7"""8self.i_stack =[]9self.o_stack =[]1011defpush(self, x):12"""13Push element x to the back of queue.14:type x: int15:rtype: void16"""17self.i_stack.append(...
empty() – Return whether the stack is empty. Notes: You must use only standard operations of a queue – which means only push to back, peek/pop from front, size, and is empty operations are valid. Depending on your language, queue may not be supported natively. You may simulate a que...
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...
class Queue { public: // Push element x to the back of queue. void push(int x) { stackA.push(x); } // Removes the element from in front of queue. void pop(void) { if(stackB.empty()) { while(!stackA.empty()) { stackB.push(()); stackA.pop(); } } if(!stackB.empty(...
栈Stack:后进先出,last-in-first-out LIFO 队列Queue:先进先出,first-in-first-out FIFO 题目要求: 最多使用2个队列,来实现栈; 支持栈的方法: push(x), 把元素 x 推入栈; top/peek(), 返回栈顶元素; pop,移除栈顶元素; empty(),判断栈是否为空。
classMyStack{Queue<Integer>queue;/** Initialize your data structure here. */publicMyStack(){queue=newLinkedList<>();}/** Push element x onto stack. */publicvoidpush(intx){queue.offer(x);intsize=queue.size();while(size>1){queue.offer(queue.poll());size--;}}/** Removes the element...
Depending on your language, the queue may not be supported natively. You may simulate a queue using a list or deque (double-ended queue) as long as you use only a queue's standard operations. class MyStack { private Queue<Integer> data;//输入队列 ...
* int param_2 = obj.pop(); * int param_3 = obj.top(); * boolean param_4 = obj.empty(); */ 方法2,两个queue, 并没有显著的差别 push时,若q1是empty, 则q1.add(a), 并且把q2中的元素全部poll()到q1中 publicclassMyStack{privateQueue<Integer>q1;privateQueue<Integer>q2;/** Initializ...
include<iostream>include<fstream>include<string>include<vector>include<list>include<deque>include<algorithm>include<stack>include<queue>include<utility>include <sstream>includeusing namespace std;chuangjian();mima(int jk);zidianlujing();xuanzemoshi(map<string,string> pp,string name);lianxu...
Or, you could save the transfer information and add it to the queue at a later time when slots are available. Next, get the URL string and create a URI object from it. If the URL string has not already been escaped, do so using EscapeUriString. Pass this URI to the constructor for...