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Sum of N-terms of geometric progression for larger values of N | Set 2 (Using recursion)

A Geometric series is a series with a constant ratio between successive terms. The first term of the series is denoted by a and the… Read More

Algorithms

Analysis of Algorithms

Competitive Programming

DSA

Mathematical

Recursion

Count subsequences with same values of Bitwise AND, OR and XOR

We are given an array arr of n element. We need to count number of non-empty subsequences such that these individual subsequences have same values… Read More

subsequence

Bit Magic

DSA

Hash

Queries for elements having values within the range A to B in the given index range using Segment Tree

Given an array arr[] of N elements and two integers A to B, the task is to answer Q queries each having two integers L… Read More

Arrays

Segment-Tree

Advanced Data Structure

Arrays

C++

C++ Programs

Competitive Programming

DSA

Recursion

Technical Scripter

Write From Home

Introduction of Compact Disk (CD) optical memory

Optical memory is a type of electronic storage medium that stores and retrieves data using a laser beam. If we categorize memory systems, optical memory… Read More

Computer Organization & Architecture

Write From Home

Importance of Testing In Competitive Programming

Many times while solving problems, we face issues like time limit exceeds, wrong solution, runtime error, and memory limit exceeds because after designing algorithm we… Read More

Algorithms

Analysis of Algorithms

C++

Competitive Programming

Divide and Conquer

DSA

Greedy

Programming Language

Randomized

Software Engineering

Technical Scripter

Amazon SDE-1 Interview Experience | Amazon WOW-2020

Online Test: The first round contain easy to medium questions. The online test consists of 28 MCQs in which there were general aptitude questions, OOPS,… Read More

Amazon

Amazon-WoW

Experiences

Interview Experiences

Amazon Interview Experience for SDE intern | On Campus (December 2019)

Position: SDE Intern Location: Bangalore Online Assessment: The test was conducted on mettl platform. It was divided into two parts: First section consisted of gate… Read More

Amazon

Experiences

Internship

Interview Experiences

Innovaccer Interview Experience | SDE Intern

I applied for SDE Intern at Innovaccer through their website around November 2019. The Intern hiring programme was named “Summergeeks”. There were 2 rounds. Round… Read More

Innovaccer

Experiences

Interview Experiences

Amazon Interview Experience – SDE 2 (3+ Years)

I was interviewed at Amazon Hyderabad for SDE 2 role. Round 1 (Online Test, Hackerrank): [Medium] A big problem statement, it was very similar to Rotten… Read More

Amazon

Experienced

Experiences

Interview Experiences

Find subarray of Length K with Maximum Peak

Given an array arr[] of length n and a positive integer K, we have to find a subarray of length K which has maximum peak… Read More

sliding-window

subarray

Arrays

Competitive Programming

DSA

Greedy

Searching

Count number of pairs with the given Comparator

Given an array arr[], the task is to count the number of pairs (arr[i], arr[j]) on the right of every element with any custom comparator. … Read More

Arrays

Divide and Conquer

DSA

Recursion

Sorting

Find the largest number smaller than integer N with maximum number of set bits

Given an integer N, the task is to find the largest number smaller than N having the maximum number of set bits.Examples: Input : N… Read More

Bit Magic

DSA

Greedy

Mathematical

Find length of longest substring with at most K normal characters

Given a string P consisting of small English letters and a 26-digit bit string Q, where 1 represents the special character and 0 represents a… Read More

substring

DSA

Greedy

Pattern Searching

Strings

Queries to find total number of duplicate character in range L to R in the string S

Given a string S of size N consisting of lower case alphabets and an integer Q which represents the number of queries for S. Our… Read More

Algorithms

DSA

Strings

Find Quotient and Remainder of two integer without using division operators

Given two positive integers dividend and divisor, our task is to find quotient and remainder. The use of division or mod operator is not allowed.… Read More

DSA

Mathematical

Searching

Optimal Strategy for the Divisor game using Dynamic Programming

Given an integer N and two players, A and B are playing a game. On each player’s turn, that player makes a move by subtracting… Read More

Arrays

Competitive Programming

DSA

Dynamic Programming

Game Theory

Write From Home

Python – Compare Dictionaries on certain Keys

Sometimes, while working with Python dictionaries, we can have a problem in which we need to compare dictionaries for equality on bases in selected keys.… Read More

Python dictionary-programs

Python

Python Programs

Python – Sort Nested keys by Value

Sometimes, while working with data records, we can have a problem in which we need to perform the sorting of nested keys of dictionary by… Read More

Python dictionary-programs

Python-sort

Python

Python Programs

JWT Authentication with Django REST Framework

JSON Web Token is an open standard for securely transferring data within parties using a JSON object. JWT is used for stateless authentication mechanisms for… Read More

Project

Python

Technical Scripter

Write From Home

Post/Redirect/Get (PRG) Design Pattern

Prerequisite- HTTP Protocol, GET and POST requests using Python Introduction: PRG is one of many design patterns used in web development. It is used to… Read More

Web technologies

Design Pattern

Python

Python Programs

System Design

TechTips

Web Technologies

Write From Home