All Medium Articles

Design a Queue data structure to get minimum or maximum in O(1) time

Problem: Design a Data Structure a SpecialQueue which supports following operations enqueue, deque, getMin() or getMax() where getMin() operation takes O(1) time.Example: Let the data… Read More

Advanced Data Structure

Articles

C++ Programs

Competitive Programming

Data Structures

DSA

Queue

Searching

Count of elements in first Array greater than second Array with each element considered only once

Given two sorted array of size N. The task is to find the maximum number of elements in the first array which are strictly greater… Read More

Aptitude

Arrays

Competitive Programming

Data Structures

DSA

Maximum neighbor element in a matrix within distance K

Given a matrix mat[][] and an integer K, the task is to find the maximum neighbor within an absolute distance of K for each element… Read More

DSA

Dynamic Programming

Matrix

Minimize the maximum difference of adjacent elements after at most K insertions

Given an array of N elements, the task is to minimize the maximum difference of adjacent elements by inserting at most K elements in the… Read More

Arrays

Competitive Programming

DSA

Mathematical

Searching

Find integral points with minimum distance from given set of integers using BFS

Given an integer array A[] of length N and an integer K. The task is to find K distinct integral points that are not present… Read More

BFS

Arrays

DSA

Graph

Greedy

Hash

Mathematical

Queue

Searching

Count of N digit palindromic numbers divisible by 9

Given an integer N, the task is to count the number of N digit palindromic numbers containing digits from 1 to 9 and divisible by… Read More

Number Divisibility

palindrome

DSA

Mathematical

Write From Home

Count of sub-arrays with odd product

Given an integer array arr[] of size N, the task is to count the number of sub-arrays that have an odd product.Examples: Input : arr[]… Read More

Maths

subarray

Arrays

Competitive Programming

DSA

Mathematical

Check whether a straight line can be formed using N co-ordinate points

Given an array arr[] of N co-ordinate points, the task is to check whether a straight line can be formed using these co-ordinate points. Input:… Read More

DSA

Geometric

Mathematical

Autokey Cipher | Symmetric Ciphers

Autokey Cipher is a polyalphabetic substitution cipher. It is closely related to the Vigenere cipher but uses a different method of generating the key. It… Read More

cryptography

Technical Scripter

Introduction to Processing | Java

Processing is an open-source programming language and development environment that is built on top of the Java programming language. It is specifically designed for artists,… Read More

Algorithms

DSA

Java

Longest subarray with absolute difference between elements less than or equal to K using Heaps

Given an array arr[] of N integers and an integer K, our task is to find the length of the longest subarray such that for… Read More

subarray

Algorithms

Arrays

Competitive Programming

DSA

Heap

Java

Java Programs

Lodash _.cloneDeep() Method

Lodash _.cloneDeep() method is used to create a deep copy of the value and it recursively clones the value. The newly created object has the… Read More

JavaScript-Lodash

JavaScript

Web Technologies

Merge first two minimum elements of the array until all the elements are greater than K

Given an array arr[] and an integer K, the task is to find the number of merge operation required such that all the elements of… Read More

min-heap

Arrays

Competitive Programming

DSA

Heap

Rule-Based Classifier – Machine Learning

Rule-based classifiers are just another type of classifier which makes the class decision depending by using various “if..else” rules. These rules are easily interpretable and… Read More

Machine Learning

C program to find the maximum and minimum element of the array

Given an array arr[] of N integers, the task is to write the C program to find the maximum and minimum element of the given… Read More

Arrays

C Language

C Programs

DSA

Programming Language

Software Engineering

Determine whether the given integer N is a Peculiar Number or not

Given an integer N, our task is the determine if the integer N is Peculiar Number. If it is then print “yes” otherwise output “no”.The… Read More

number-theory

DSA

Mathematical

Processing strings using std::istringstream

The std::istringstream is a string class object which is used to stream the string into different variables and similarly files can be stream into strings.… Read More

C++

C++ Programs

DSA

Strings

Longest subarray in which absolute difference between any two element is not greater than X

Given an integer array arr[] of size N and an integer X, the task is to find the longest sub-array where the absolute difference between… Read More

sliding-window

subarray

Arrays

Competitive Programming

DSA

Mathematical

Amazon Interview Experience | SDE-1 | WOW 2020

Online exam: The online test consisted of 28 MCQs and 2 coding questions, which were of medium level difficulty. It was followed by 4 technical… Read More

Amazon

Amazon-WoW

Marketing

Experiences

Interview Experiences

Identical Splitting in a rectangular grid

Given a rectangular grid NxM dimensions, the task is to find the minimum number of cuts required to break the given rectangular grid into a… Read More

school-programming

C++

C++ Programs