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Lowe’s company on campus interview experience

Round1: Online coding round This round consisted of sections like aptitude, logical reasoning, verbal and coding.Each section consisted of 30 questions. There were 2 coding… Read More

Experiences

Interview Experiences

Fork Java | Course Structure

Course Home Page Week Topic Sub-Topic Week 1 Basics Of Java, Control Structures Background (JVM, JDK and JRE), Syntax, Variables, Data Types, I/O, Operators, Java… Read More

Java Programs

Fork CPP | Course Structure

Course Home Page Week Topic Sub-Topic Week 1 Basics Of C++, Control Structures Syntax, Variables, Data Types, I/O, Operators, Preprocessors, If, If-else, Switch case, Loops(For,… Read More

C++ Programs

Optimal sequence for AVL tree insertion (without any rotations)

Given an array of integers, the task is to find the sequence in which these integers should be added to an AVL tree such that… Read More

AVL-Tree

Advanced Data Structure

Algorithms

Binary Search Tree

DSA

C# | HashSet Class

A HashSet<T> is an unordered collection of the unique elements. It comes under System.Collections.Generic namespace. It is used in a situation where we want to… Read More

CSharp-Generic-HashSet

CSharp-Generic-Namespace

C#

Number of Isosceles triangles in a binary tree

Pre-Requisites: Depth First Search | Parent Array RepresentationGiven a parent array representation of a binary tree, we need to find the number of Isosceles triangles… Read More

Picked

Technical Scripter 2018

triangle

Competitive Programming

DSA

Graph

Technical Scripter

Tree

Design a Hit Counter

Design a hit counter which counts the number of hits received in the past 5 minutes. Source: Microsoft Interview Experience “Design hit counter” problem has… Read More

System Design

Find first and last element of ArrayList in java

Prerequisite: ArrayList in Java Given an ArrayList, the task is to get the first and last element of the ArrayList in Java, Examples: Input: ArrayList… Read More

Java-ArrayList

Java-Collections

Java-List-Programs

Technical Scripter 2018

Java

Technical Scripter

Minimum Bitwise AND operations to make any two array elements equal

Given an array of integers of size ‘n’ and an integer ‘k’, We can perform the Bitwise AND operation between any array element and ‘k’ any… Read More

Bitwise-AND

Arrays

DSA

Hash

Find Sum of Series 1^2 – 2^2 + 3^2 – 4^2 ….. upto n terms

Given a number n, the task is to find the sum of the below series upto n terms: 12 – 22 + 32 – 42… Read More

series

series-sum

DSA

Mathematical

School Programming

SortedMap values() method in Java with Examples

The values() method of SortedMap interface in Java is used to create a collection out of the values of the map. It basically returns a… Read More

Java - util package

Java-Collections

Java-Functions

Java-SortedMap

Java

map key_comp() function in C++ STL

The map::key_comp() is a function in STL in C++ that returns a copy of comparison object used by container that compare keys. Syntax: map.key_comp() Return… Read More

CPP-Functions

cpp-map

Picked

C++

HashTable putIfAbsent() method in Java with Examples

The putIfAbsent(Key, value) method of Hashtable class which allows to map a value to a given key if given key is not associated with a… Read More

java-basics

Java-Functions

Java-HashTable

Java

Multidimensional data analysis in Python

Multi-dimensional data analysis is an informative analysis of data which takes many relationships into account. Let’s shed light on some basic techniques used for analysing… Read More

python

Technical Scripter 2018

Machine Learning

Technical Scripter

Find the maximum sum of Plus shape pattern in a 2-D array

Given a 2-D array of size N*M where, . The task is to find the maximum value achievable by a + shaped pattern. The elements of… Read More

Arrays

DSA

Dynamic Programming

Matrix

Minimum difference between the highest and the smallest value of mines distributed

Given n companies and m oil mines having values, the task is to distribute the mines among n companies in a fair manner. That is… Read More

Permutation and Combination

Picked

Technical Scripter 2018

Algorithms

DSA

Graph

Recursion

Technical Scripter

Minimum number of segments required such that each segment has distinct elements

Given an array of integers, the task is to find the minimum number of segments that the array elements can be divided into such that… Read More

Arrays

DSA

Hash

Perform the given queries on the rooted tree

Given a rooted tree and not necessarily binary. The tree contains N nodes, labeled 1 to N. You are given the tree in the form… Read More

Technical Scripter 2018

Algorithms

DSA

Technical Scripter

Number of distinct integers obtained by lcm(X, N)/X

Given a number N, find the number of distinct integers obtained by LCM(X, N)/X where X can be any positive number. Examples: Input: N = 2… Read More

GCD-LCM

Competitive Programming

DSA

Mathematical

Flatten a Stream of Arrays in Java using forEach loop

Given a Stream of Arrays in Java, the task is to Flatten the Stream using forEach() method. Examples: Input: arr[][] = {{ 1, 2 },… Read More

Java