## LeetCode 232 ## Impletement Queue using Stack class MyQueue: def __init__(self): self.l1 = [] ## stack 1 = l1 self.l2 = [] ## stack 2 = l2 def push(self, x: int) -> None: ## Push x onto queue self.l1.append(x) ## The right of the list = the top of the s...
* The front element in the stack `inStack` 's queue */privateintfront;/** Initialize your data structure here. */publicMyQueue2(){ inStack =newStack<>(); outStack =newStack<>(); }/** Push element x to the back of queue. */publicvoidpush(intx){if(inStack.empty()) { front ...
* Push element x to the back of queue. *@paramInteger $x *@returnNULL */functionpush($x){while(!$this->empty()) {$this->stack2[] =array_pop($this->stack1); }$this->stack1[] =$x;while(!empty($this->stack2)) {$this->stack1[] =array_pop($this->stack2); } }/** *...
pushStack) - 1] } } } /** * Your MyQueue object will be instantiated and called as such: * obj := Constructor(); * obj.Push(x); * param_2 := obj.Pop(); * param_3 := obj.Peek(); * param_4 := obj.Empty(); */ 题目链接: Implement Queue using Stacks : leetcode.com/...
题目链接:https://leetcode.com/problems/implement-queue-using-stacks/题目: 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. ...
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. ...
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。
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//...
Here we are using some basic OS and JVM primitives to implement a blocking queue. Basically it is using monitor and lock.Javaexposes those two OS primitives to programmers as Condition and ReentrantLock. Here is the explanation from Java Doc...
ps:双队列官方题解思路参考:https://leetcode-cn.com/problems/im C 队列 0 175 0 血染信条 ・ 2021.05.19 python list实现栈 解题思路代码 Python3 Python 0 172 0 abel ・ 2021.05.18 用队列实现栈 解题思路思路:正确的思路是,就用一个queue,然后pop,top,empty什么的你就正常调用front和empty,就是...