A queue can be implanted using stack also. We need two stacks for implementation. The basic idea behind the implementation is to implement the queue operations (enqueue, dequeue) with stack operations (push, pop). Implementation: Let s1 and s2 be the two stacks used for implanting the queue...
Stack implementation using two Queues: Here, we are going to implement a stack using two queues using C++. Submitted by Radib Kar, on September 26, 2018 Stack and Queue at a glance...Stack:The stack is an ordered list where insertion and deletion are done from the same end, top. The...
publicvoidpush(intx) { while(!stack.isEmpty()){ aux.push(stack.pop()); } stack.push(x); while(!aux.isEmpty()){ stack.push(aux.pop()); } } // Removes the element from in front of queue. publicvoidpop() { stack.pop(); } // Get the front element. publicintpeek() { retu...
// java program for the implementation of queue using array public class StaticQueueinjava { public static void main(String[] args) { // Create a queue of capacity 4 Queue q = new Queue(4); System.out.printf("Initial queue\n"); q.queueDisplay(); q.queueEnqueue(10); System.out.pri...
Learn how to implement Stack data structure in Java using a simple Array and using Stack class in Java with complete code examples and functions like pop, push.
We can implement the queue in any programming language like C, C++, Java, Python or C#, but the specification is pretty much the same. Basic Operations of Queue A queue is an object (an abstract data structure - ADT) that allows the following operations: Enqueue: Add an element to the ...
I implemented two versions of a Fibonacci heap one using a unordered map (mapping keys to their nodes) so that the client can call decrease in O(1)O(1) average and amortized time. The other one with a dynamic array of nodes and a maximum size for the same reason but in O(1)O(1...
In C++, strings can be represented using three ways. Using Two-dimensional Character Arrays:This representation uses the two-dimensional arrays where each element is the intersection of a row and column number and represents a string Using String Keyword:We can also use the string keyword of C++...
Working of queue: We can implement queue by using two pointers i.e. FRONT and REAR. FRONT is used to track the first element of the queue. REAR is used to track the last element of the queue. Initially, we’ll set the values of FRONT and REAR to -1. ...
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