All Hard Articles

Find all the possible mappings of characters in a sorted order

Given a number find all the possible mappings of the characters in sorted order.Examples: Input: 123 Output: ABC AW LC Explanation: 1 = A; 2… Read More

Algorithms

Arrays

DSA

Recursion

Count of odd length contiguous Palindromic sequences in a Matrix

Given a matrix arr[][] of size MxN, the task is to find the number of contiguous palindromic sequences of odd length in that matrix. Example: … Read More

palindrome

Arrays

DSA

Mathematical

Matrix

Zoho Interview Experience (Chennai) | Jan 2020 Off-Campus

Interview conducted for (1-4) year experienced C/C++ developer. Programming Language allowed C or C++. Round 1: It was a simple Coding for 3 hours. Questions… Read More

Marketing

Off-Campus

Zoho

Experiences

Interview Experiences

ISRO | ISRO CS 2020 | Question 10

A stack is implemented with an array of ‘A[0…N – 1]’ and a variable ‘pos’. The push and pop operations are defined by the following… Read More

ISRO

Introduction to Capsule Neural Networks | ML

Capsule Neural Network also known as CapsNet is an artificial neural network (ANN) in machine learning to designed to overcome limitations of traditional convolutional neural… Read More

Deep-Learning

Machine Learning

Number of pairs of arrays (A, B) such that A is ascending, B is descending and A[i] ≤ B[i]

Given two integers N and M, the task is to find the number of pairs of arrays (A, B) such that array A and B… Read More

Technical Scripter 2019

Algorithms

Arrays

Combinatorial

Data Structures

DSA

Technical Scripter

How to create a Facebook login using an Android App?

In this article, it is explained how to create an Android App that has a Facebook login in it. There are various social login features… Read More

Android-Misc

Picked

Android

Java

Python: Map VS For Loop

Map in Python : Map is used to compute a function for different values ‘in a single line of code ‘ . It takes two… Read More

python-utility

Technical Scripter 2019

Python

Technical Scripter

Check if one string can be converted to another

Given two strings str and str1, the task is to check whether one string can be converted to other by using the following operation: Convert… Read More

union-find

Algorithms

DSA

Hash

Strings

Floyd-Rivest Algorithm

The Floyd-Rivest algorithm is a selection algorithm used to find the kth smallest element in an array of distinct elements. It is similar to the… Read More

Quick Sort

Arrays

Divide and Conquer

DSA

Samsung R&D Bangalore Interview Experience | Lateral hire (6 month experience)

It was a Professional level coding test, where we were given 4 hours to solve One problem. There is a highway that has damages at… Read More

Marketing

Samsung

Experiences

Interview Experiences

DeleteView – Class Based Views Django

Delete View refers to a view (logic) to delete a particular instance of a table from the database. It is used to delete entries in… Read More

Django-views

Python Django

Python

Python – Reverse Sort a String

Sorting has always been quite a popular utility with lots of applications everywhere, which Python language has opted for. Python in its language offers a… Read More

Python string-programs

Python-sort

Python

Python Programs

PharmEasy Interview Experience for SDE-1

Round 1: Question 1: Find the element that appears once in an array where every other element appears twice in less than O(n). Array is sorted.… Read More

Marketing

Pharmeasy

Experiences

Interview Experiences

Number of square matrices with all 1s

Given an N*M matrix containing only 0s and 1s, the task is to count the number of square submatrices containing all 1s. Examples: Input: arr[][]… Read More

DSA

Dynamic Programming

Matrix

Smallest number greater than n that can be represented as a sum of distinct power of k

Given a number n and a value k, the task is to find the smallest m(m>=n), such that m can be represented as a sum… Read More

Technical Scripter 2019

Arrays

C Language

C++

C++ Programs

C/C++ Puzzles

Competitive Programming

DSA

Mathematical

Pattern Searching

Searching

Technical Scripter

How to delete data from file in Python

When we no longer require data, we usually prefer to erase or delete it so that space can be used up by other data that… Read More

python-file-handling

Technical Scripter 2019

Python

Technical Scripter

Simplified International Data Encryption Algorithm (IDEA)

Introduction : The International Data Encryption Algorithm (IDEA) is a symmetric-key block cipher that was first introduced in 1991. It was designed to provide secure… Read More

cryptography

Algorithms

Articles

DSA

Engineering Mathematics

Mathematical

Technical Scripter

Number of pairs of lines having integer intersection points

Given two integer arrays P[] and Q[], where pi and qj for each 0 <= i < size(P) and 0 <= j < size(Q) represents… Read More

DSA

Geometric

Mathematical

Program to find the time remaining for the day to complete

Given the current time in the form of HH::MM, where H represents the hours and M, represents the minutes in a 24-hour time format. The… Read More

DSA

Mathematical

School Programming