while(!queue2.isEmpty()){ top = queue2.poll(); queue1.offer(top); } }else{ while(!queue1.isEmpty()){ top = queue1.poll(); queue2.offer(top); } } return top; } /** Returns whether the stack is empty. */ public boolean empty() { return queue1.isEmpty() && queue2.isE...
importjava.util.NoSuchElementException;importjava.util.LinkedList;importjava.util.Queue;classMyStack{/** * The main queue using to store all the elements in the stack */privateQueue<Integer> q1;/** * The auxiliary queue using to implement `pop` operation */privateQueue<Integer> q2;/** * ...
queue =newLinkedList<Integer>(); size =0; }/** Push element x onto stack. */publicvoidpush(intx){ queue.add(x); size++; }/** Removes the element on top of the stack and returns that element. */publicintpop(){for(inti=1; i<size; i++) { queue.add(queue.poll()); } size...
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...
Implement the following operations of a stack using queues. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. empty() -- Return whether the stack is empty. ...
classMyStack{public:/** Initialize your data structure here. */MyStack(){}queue<int>que;/** Push element x onto stack. */voidpush(int x){que.push(x);for(int i=0;i<que.size()-1;i++){que.push(que.front());que.pop();}}/** Removes the element on top of the stack and ...
Dequeue an element from the queue. C++ Java Python #include<bits/stdc++.h> using namespace std; class Stack { queue<int>q; public: void push(int val); void pop(); int top(); bool empty(); }; void Stack::push(int val) { int s = q.size(); q.push(val); for (int i=0...
Please review the stack trace for more information about the error and where it originated in the code. Any difference between Server.MapPath("~") and Server.MapPath("") ? Any easy way to log user activity after they login? Any event after the page load completed? API GET:Obj ref not ...
push(x) – Push element x onto stack. pop() – Removes the element on top of the stack. top() – Get the top element. empty() – Return whether the stack is empty. Notes: You must useonlystandard operations of a queue – which means only push to back, peek/pop from front, size...
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