To align the calendar year with the solar year, an extra day, or February 29, is added to the year every four years. It is well known that this year...
Before starting with the difference between array and linked list let’s first understand what an array is and what a linked list is. What is an Array? An array is...
In this tutorial on Python vs C++, you'll learn everything you need to know about Python and C++, including the features and applications of each language, making it simple to...
In this article, we are going to discuss the Interface in Java topic. We will define interface in Java, and study the use of interface in Java, its syntax, features,...
Constructor is invoked when an object of the class is generated and is quite similar to a method. In most cases, a constructor is used to execute the initial blocks...
Methods can be accessed in two ways: by value and by reference. Calling a method by value means passing a value as a parameter. Calling a method by reference means...
Understanding the differences between C and Java is important because it allows programmers to choose the most appropriate language for a given project based on factors like performance, platform independence,...
A member function in C++ is a function that is part of a class. It is used to manipulate the data members of the class. Member functions are also known...
In this article, we will discuss the most important commonly asked DBMS Interview Questions and Answers in order to make you familiar with the type of questions that can be...
Given an expression, find and mark matched and unmatched parenthesis in it. We need to replace all balanced opening parenthesis with 0, balanced closing parenthesis with 1, and all unbalanced...
Note: Expression may contain any of these ‘+‘, ‘*‘, ‘–‘, and ‘/‘ operators. Given expression is valid and there are no white spaces present. Examples: Input: “((a+b+c))” Output: YES Explanation:...
Problem Statement: You are given a queue of integers and an integer value K. Your task is to reverse the first K elements of the queue, leaving the rest of...
A stack is a type of linear data structure that follows a specific order for performing operations. The sequence can either be Last In First Out (LIFO) or First In...
Problem Statement: You are given 2 N-ary trees. You have to determine whether the 2 trees are mirror images of each other or not. You have to print “true” if...
Problem statement Given an array of strings, if two consecutive strings are the same they will destroy each other. Your task is to find the number of remaining strings from...
Problem statement Given a number n, you have to find the count of all such numbers that satisfies the following condition: For any number x, all the permutations of x...
Problem Statement: You will be given a stack of integer values. You have to keep a track of the maximum value in the stack. For instance, the element that is...
Problem Statement: You will be given 2 arrays. You have to tell whether the 2 arrays are stack permutations of each other or not. Basically, there will be 2 input...
Problem Statement: Given a Binary Tree, you need to find all the ancestors of a particular node of that binary tree. You will be given the value that is stored...
Problem Statement You will be given an array that represents a histogram. The values of the array represent the height of the bars of the histogram and the width of...
Problem Statement You will be given an array of time intervals that will be in any random order. You have to merge all the overlapping intervals and print only the...
Problem Statement: You are given a binary tree. Your task is to print the postorder traversal of the binary tree using just 1 stack. Example Consider the tree given below....
Problem Statement You are given three stacks, you need to find the maximum sum possible of the three stacks. You are only allowed to remove the top of the stack....
Problem statement In the Tower of Hanoi problem you are given three rods (“Source”, “Destination”, “Auxiliary”) and n disks. Initially, all the disks are stacked on the source rod in...
Problem Statement You are given a string, and your task is to reverse the string using a stack data structure. Input: String. Output: Reversed string. Test cases: Input: “Prepbytes” Output:...
Problem statement You are given a binary tree and a key node. Your task is to print all the ancestors of the given key node. Input: Root of the binary...
Cognizant is a multinational technology company based in the United States specializing in business consulting, information technology, and outsourcing. The company's headquarters are in Teaneck, New Jersey. Cognizant is a...
Data structure refers to a collection of data with well-defined operationsIn this article, we’ll be discussing Data structures in Java, The term data, behaviour, or properties. A data structure is...
Introduction: Data structures in Java are an essential aspect of Computer Science. There are different types of data structures that help us store the data in different ways in the...
Queues are basic data structures that are used extensively in computer science and programming. They adhere to the First-In-First-Out (FIFO) principle, making them ideal for data management in situations where...