Iterative Selection Sort For Linked List
In this blog, we tackle a coding task that involves iterative selection sort for linked list. A linked list is unidirectional i.e. we can only traverse the linked list in...
The most efficient way to Pairwise swap elements of a given linked list
In this article, we will understand how to pairwise swap elements of a linked list. Linked list as a sequence of data structures which are connected through links and each...
Treemap vs Hashmap vs Linkedhashmap in Java
While learning Java, you all must have come across these terms of TreeMap, hashmap, Linkedhashmaps also have used these data structures and their implementations in your programs. But what is...
Reverse a Doubly Linked List
Reverse a Doubly Linked List In this problem, we will be given a doubly linked list as input and we need to reverse it. Let the given input be: Input...
Find the sum of last n nodes of the given Linked List
The Linked list is an important topic from an interview perspective. Companies like Amazon, Flipkart, Goldman Sach, Abode, Samsung, and many more asked questions over the linked lists. In this...
Remove all occurrences of duplicates from a sorted Linked List
Remove all occurrences of duplicates from a sorted Linked List In this problem, we are given a LinkedList (root node) and are asked to delete all the nodes occurring more...
Find the length of a loop in the linked list
In the realm of data structures, linked lists are foundational, offering dynamic memory allocation and efficient data manipulation. However, linked lists can occasionally contain loops or cycles, which disrupt their...
Bubble Sort On Doubly Linked List
Sorting is one of the famous techniques used to rearrange the array or the list of elements. In this article, we will learn how to sort a doubly linked list...
Top 30 Java Programming interview questions
Check if a given number is palindrome or not. Ans. A palindrome is a number which is when reversed give the same number. We find the reverse and check whether...
Top 50 Basic interview questions from C
What do you mean by dangling pointer? Ans. If a pointer is pointing to some address of a variable and at that moment another pointer is used to delete that...
Commonly asked interview questions on c
Why do we still use C? Isn’t it quite old? Ans. C is considered to be the mother of all modern-day languages. It was initially created for the purpose of...
Top 20 algorithm interview questions
Given an array of integers, find the indices of two numbers that sum up to the given target. For example – Arr[] = {1, 2, 4 -3, 7}, and target...
Linked list on C++
Linked List is a linear data structure which comprises of elements/nodes stored at various locations not necessarily contiguous. But don’t we have arrays for keeping a list? Well, there are...
Top 30 Wipro interview questions for freshers
In this tutorial, we will be discussing Wipro interview questions for freshers and experienced. If you have the talent, passion, and ability to work, able to work on cutting-edge technologies...
Practice java programs for interview
1. Write a program to swap two numbers in Java. Ans. Two ways to do this -with third variable and without third variable. public static void swapNumberswithtemp(int a, int b)...
Introduction to c language for beginners
C is a general-purpose procedural programming language developed by Dennis M. Ritchie. It was used to develop the UNIX operating system so you can understand how powerful it really is....
Top 30 java interview questions and answers for freshers
What is immutable object? Ans. Immutable objects can be created of immutable classes. Objects of these class cannot be modified. So whenever we try to change or modify these objects...
50 simple java programs for beginners
1. Write a program in Java to reverse a number. Ans. Extract each digit and keep multiplying with 10 and adding the remainder. static int REV(int n){ long RevNumber=0; while...
25 Most Important programming interview questions
1. What is the difference between procedural language and object-oriented language? Ans. Procedural Programming languages follow a sequence of instructions and conveys it to the computer. Procedural programming depends on...
How to crack coding interview
How to crack coding interview Whether you are a recent graduate or a job seeker, if you are searching for a job this article will help you to prepare yourself...
Why is Java a secure language?
Java is a highly well-known object-oriented programming language that was developed in 1972, but it has continued to be one of the most crucial languages for decades. As its competitors...
Find a Number
Concepts Used Binary Search Difficulty Level Easy Problem Statement : Finding a number has always been an interesting puzzle! Well in this problem we are given a sorted array of...
DELETE Kth NODE FROM THE END
This blog will give the detailed description to Delete Nth node from the end of the linked list. Deleting the Nth node from the end of the linked list will...
TOYS
Concepts Used DYNAMIC PROGRAMMING Difficulty Level Easy. Problem Statement : Once upon a time, Arya visited a toy store. As Arya is a small kid he is attracted to every...
FOOLISH ITEMS
CONCEPTS USED: Dynamic programming. DIFFICULTY LEVEL: Easy. PROBLEM STATEMENT(SIMPLIFIED): Arnab is now handed N rupees, he is asked by his mom to buy at least two ingredients which when used...
BALANCED PARENTHESIS COUNT
CONCEPTS USED: Recursion and Backtracking. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Rohan is now fond of balanced sequences, but suddenly he realized that he is in love with balanced parenthesis. Now...
BST COUNT
CONCEPTS USED: Recursion,Dynamic programming. DIFFICULTY LEVEL: Medium. PROBLEM STATEMENT(SIMPLIFIED): Arnab is now given N nodes. Now he asked how many binary search trees can be formed using those N nodes....
LONGEST COMMON SUBSEQUENCE
LCS, which stands for "Longest Common Subsequence" is a fundamental problem in computer science and bioinformatics. It involves finding the longest subsequence that is common to two or more sequences....
COIN DIVISION
CONCEPTS USED: Dynamic programming. DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Arnab is now given N numbers, which are actually stacks of coins containing a[i] amount of coins each. Now he is...
DROP EGG
CONCEPTS USED: Dynamic programming DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Himanshu visited a building with N floors and he carried with him k eggs, he found out that the eggs are...