Can you solve this real interview question? Implement Stack using Queues - Implement a last-in-first-out (LIFO) stack using only two queues. The implemented stack should support all the functions of a normal stack (push, top, pop, and empty). Implement
#include<iostream>#include<queue>usingnamespacestd;queue<int>qu1;queue<int>qu2;boolqu1_use=1;boolqu2_use=0;voidpush(intx);voidpop();inttop();boolempty();voidmain(){push(1);push(2);push(3);push(4);inti=5;while(i){if(!empty()){cout<<top()<<endl;pop();}i--;}}voidpush...
Depending on your language, queue may not be supported natively. You may simulate a queue by using a list or deque (double-ended queue), as long as you use only standard operations of a queue. You may assume that all operations are valid (for example, no pop or top operations will be...
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. 1classMyQueue {23privateStack<Integer>s...
private Queue<Integer> q2=new LinkedList<Integer>(); /** Push element x onto stack. */ public void push(int x) { if(!q1.isEmpty()) q1.add(x); else q2.add(x); } /** Removes the element on top of the stack and returns that element. */ ...
How to implement the Stack using a Single Queue? The Stack can be easily implemented by making the insertion operation costly. For the push operation i.e. the insertion operation, we will store the count of the elements (n) present in the stack. Then, the new element is inserted at the...
/** Push element x to the back of queue. */publicvoidpush(intx) {s1.push(x); } So what if usingpeekto get the front element of the queue at this time? Logically speaking, the front element should be 1, but ins1, 1 is pushed to the bottom of the stack. No...
Switch/Stack Mac Address : 682c.7bf8.8700 - Local Mac Address Mac persistency wait time: Indefinite H/W Current Switch# Role Mac Address Priority Version State --- *1 Active682c.7bf8.87001 V01 Ready<--- Use to validate the Agent ID in DHCP Option 82 DHCP ...
queueMicrotask is a global from browsers which enables the user code to insert a callback into the microtask queue. We currently do not expose this functionality. Refs: https://html.spec.whatwg.org...
999 non standard linked in error A blocking operation was interrupted by a call to WSACancelBlockingCall A call to PInvoke function has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. (.NET 4) A callback was made on...