In this tutorial, we are going to learn how to create a linked list from the given array.Let's see the steps to solve the problem.Initialize the array with dummy data.Write the struct node.Iterate over the array.Create a new node with the data.Insert the new node into the linked list.Print the linked list.ExampleLet's see the code.#include using namespace std; struct Node {    int data;    Node* next; }; struct Node* newNode(int data) {    Node* node = new Node;    node->data = data;    node->next = NULL;    return node; } void insertNewNode(Node** root, int data) {    Node* ... Read More

In this tutorial, we are going to write a program that creates a new string by alternately combining the characters of the two halves of the string in reverse order.Let's see the steps to solve the problem.Initialize the string.Find the length of the string.Store the first half and second half string indexes.Iterate from the ending of the two halves of the string.Add each character to the new string.Print the new string.ExampleLet's see the code. Live Demo#include using namespace std; void getANewString(string str) {    int str_length = str.length();    int first_half_index = str_length / 2, second_half_index = str_length;    string ... Read More

In this tutorial, we are going to reflect the given binary tree.Let's see the steps to solve the problem.Write a struct node.Create the binary tree with dummy data.Write a recursive function to find the mirror of the given binary tree.Recursively call the function with left and right nodes.Swap the left node data with the right node data.Print the tree.ExampleLet's see the code. Live Demo#include using namespace std; struct Node {    int data;    struct Node* left;    struct Node* right; }; struct Node* newNode(int data) {    struct Node* node = new Node;    node->data = data;    node->left = ... Read More

In this tutorial, we are going to write a program that creates a new linked list from the given linked lists.We have given two linked lists of the same size and we have to create a new linked list from the two linked lists with the max numbers from the two linked lists.Let's see the steps to solve the problem.Write a struct node.Create two linked lists of the same size.Iterate over the linked list.Find the max number from the two linked lists nodes.Create a new node with the max number.Add the new node to the new linked list.Print the new ... Read More

In this tutorial, we are going to learn how to double the given tree.Let's see the steps to solve the problem.Create node class.Initialize the tree with dummy data.Write a recursive function to double the tree.Recursively traverse through the tree.Store the left node in a variable.After traversing add the data by creating a new node.Now, add the left node to the newly created node as a left child.Print the tree.ExampleLet's see the code. Live Demo#include using namespace std; class node {    public:    int data;    node* left;    node* right; }; node* newNode(int data) {    node* Node = ... Read More

In this tutorial, we are going to write a program that doubles the first element and moves all the zeroes to the end of the given array.We have to double a number when there are tow the same elements in adjacent indices. After that, we have to add a zero to the array.Move all the zeroes in the array to the end.ExampleLet's see the code. Live Demo#include using namespace std; void moveZeroesToEnd(int arr[], int n) {    int count = 0;    for (int i = 0; i < n; i++) {       if (arr[i] != 0) { ... Read More

In this tutorial, we are going to create a double-ended priority queue using the set in c++.Let's see the steps to create a double-ended queue.Create a struct with a name as you wish.Create a variable for the queue using the set.size method that returns the size of the queue.is_empty method that returns whether the queue is empty or not.insert method to insert a new element into the queue.get_start method that returns an element from the left side of the queue.get_end method that returns the element from the right side of the queue.delete_start method that deletes the first element from the ... Read More

In this tutorial, we are going to write a program that checks whether the given number is a palindrome in two number systems.We have given a number and a base for another number system. We have to check whether the given number is a palindrome in the decimal number system and given number system.Let's see the steps to solve the problem.Initialize the number and number system base.Check whether the given number is a palindrome in the decimal number system or not.Convert the number into another number system in a string format.Check whether the converted number is palindrome or not.If the ... Read More

In this tutorial, we are going to write a program that finds the divisors count of n-square and not n.It's a straightforward problem. Let's see the steps to solve the problem.Initialize the number n.Initialize a counter for divisors.Iterate from 2 to n^2n2.If the n^2n2 is divisible by the current number and nn is not divisible by the current number, then increment the count.Print the count.ExampleLet's see the code. Live Demo#include using namespace std; int getNumberOfDivisors(int n) {    int n_square = n * n;    int divisors_count = 0;    for (int i = 2; i

In this tutorial, we are going to learn how to divide a number without using the division (/) operator.We have given two numbers, the program should return the quotient of the division operation.We are going to use the subtraction (-) operator for the division.Let's see the steps to solve the problem.Initialize the dividend and divisor.If the number is zero, then return 0.Store whether the result will be negative or not by checking the signs of dividend and divisor.Initialize a count to 0.Write a loop that runs until the number one is greater than or equals to the number two.Subtract the ... Read More