Dequeue operation: O(1) (amortized complexity) C++ implementation using STL // header file to include all libraries#include<bits/stdc++.h>usingnamespacestd;structQueue{stack<int>s1,s2;// stl used// Enqueue an item to the queuevoidenQueue(intx){// Push item into the first stacks1.push(...
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...
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.printf("\nQueue after operation enqueue(10)\n"); q.queueDisp...
Implementation code using C++ (using STL)#include <bits/stdc++.h> using namespace std; struct Stack{ queue<int> q1,q2; void push(int x){ if(q1.empty()){ q2.push(x); //EnQueue operation using STL } else{ q1.push(x); //EnQueue operation using STL } } int pop(){ int count,...
Operation on Queue Basic operations: C++ implementation This article is about queue implementation using array in C++. Queue as an Abstract data Type Queue is an ordered data structure to store datatypes in FIFO (First in First Out) order. That means the element which enters first is first to...
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.
for the first element, set the value of FRONT to 0 increase the REAR index by 1 add the new element in the position pointed to by REAR Dequeue Operation check if the queue is empty return the value pointed by FRONT increase the FRONT index by 1 for the last element, reset the values...
<queue> #include <ranges> #include <stack> #include <stdexcept> #include <string> #include <tuple> #include <type_traits> #include <utility> #include <variant> #include <vector> // is_reservable concept template<class T> concept is_reservable = requires(T input) { input.reserve(1); }...
Peek(): This operation is used to get the value of the element from the front of the queue. 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. ...
Post-operation, always ensure that you close the database connection to free up resources. connection.close() Linking pyODBC to IBM Db2 Step 1: Prerequisites Download and install the IBM Db2 ODBC driver, which acts as the intermediary between pyODBC and the IBM Db2 database. Step 2: Installat...