Rajan Kumar - HackersFriend

RK	rajan published an article March 27, 2020 ⋅ 442 views

Python - Text to Speech by using pyttsx3

RK	rajan published an article April 17, 2020 ⋅ 524 views

Building a simple To Do list app using HTML CSS Javascript

RK	rajan published an article April 20, 2020 ⋅ 612 views

Advanced python concepts the easy way ( Lambda , Map and Filter )

RK	rajan published an article Aug. 10, 2020 ⋅ 263 views

Google off campus drive 2020 for India location

RK	rajan published an article April 18, 2020 ⋅ 798 views

Using advanced Python concepts the easy way ( List comprehensions and Slicing )

RK	rajan published an article Aug. 2, 2020 ⋅ 208 views

7 Data Science project ideas you can work on to stand out

RK	rajan published an article Aug. 11, 2020 ⋅ 19 views

How to return JSON Encoded response from Django View

RK	rajan published an article March 27, 2020 ⋅ 511 views

Building a news headlines player using Python and text to speech

RK	rajan published an article April 16, 2020 ⋅ 653 views

How does django prevents clickjacking ?

RK	rajan published an article April 3, 2020 ⋅ 462 views

How to upload file to SQL server using pyodbc python

RK	rajan published an article July 21, 2020 (Updated July 21, 2020) ⋅ 256 views

Handling Exceptions in Python

RK	rajan published an article May 24, 2020 (Updated May 24, 2020) ⋅ 516 views

Automating backup of PostgreSQL database

RK	rajan published an article May 16, 2020 (Updated May 16, 2020) ⋅ 536 views

Building Instagram Profile pic downloader in python

RK	rajan published an article April 28, 2020 (Updated April 28, 2020) ⋅ 630 views

Iteration Protocol and Generators in Python

RK	rajan published an article April 15, 2020 (Updated April 15, 2020) ⋅ 425 views

Why python is so popular despite being slow ?

RK	rajan published an article April 4, 2020 (Updated April 6, 2020) ⋅ 262 views

How to redirect using javascript

RK	rajan published an article March 29, 2020 (Updated March 30, 2020) ⋅ 865 views

How to prepare for Hack With Infy 2020

RK	rajan published an article March 22, 2020 (Updated March 24, 2020) ⋅ 493 views

Filtering empty or NULL values in a Django queryset

RK	rajan published an article Jan. 25, 2020 (Updated March 9, 2020) ⋅ 163 views

forEach() Vs map() in JavaScript - Things every developer should know

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 16, 2020) ⋅ 101 views

Convert a number to a string in C - best way

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 12, 2020) ⋅ 3624 views

Building news aggregator web app with Django using python web scraping

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 8, 2020) ⋅ 167 views

Find Length of a Linked List

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 8, 2020) ⋅ 173 views

Sort string of characters C++

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 8, 2020) ⋅ 129 views

Print a matrix in spiral form

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 6, 2020) ⋅ 107 views

Print reverse of a string using recursion

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 5, 2020) ⋅ 1008 views

Amazon Product Price tracking using Python

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 3, 2020) ⋅ 133 views

Program to find the mid-point of a line

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 3, 2020) ⋅ 157 views

Generate QR Code using python with pyqrcode module

RK	rajan published an article Jan. 23, 2020 (Updated Dec. 27, 2019) ⋅ 420 views

Mouse and keyboard automation using Python

RK	rajan published an article Jan. 23, 2020 (Updated Dec. 26, 2019) ⋅ 98 views

C++ Trigonometric functions

RK	rajan published an article Jan. 23, 2020 (Updated Dec. 26, 2019) ⋅ 80 views

Remove one element to maximize XOR of array

RK	rajan published an article Jan. 23, 2020 (Updated Dec. 6, 2019) ⋅ 157 views

Algorithms and Maths you need to know for hard level competitive programming problems

RK	rajan published an article Jan. 23, 2020 (Updated Dec. 2, 2019) ⋅ 153 views

C++ Hacks for Competitive programming

RK	rajan published an article Jan. 23, 2020 (Updated Nov. 21, 2019) ⋅ 194 views

Add two numbers without using arithmetic operators

RK	rajan published an article Jan. 23, 2020 (Updated Nov. 19, 2019) ⋅ 217 views

Efficient Method to Check if a Number is Multiple of 3

RK	rajan published an article Jan. 23, 2020 (Updated Nov. 18, 2019) ⋅ 280 views

DNA to Protein Converter using Python 3 and Django 2.1

RK	rajan published an article Jan. 23, 2020 (Updated Nov. 16, 2019) ⋅ 230 views

Step by step guide to improve competitive programming skills

RK	rajan published an article Jan. 23, 2020 (Updated Nov. 13, 2019) ⋅ 251 views

Implement a Dictionary using Trie

RK	rajan published an article Jan. 23, 2020 (Updated Nov. 9, 2019) ⋅ 78 views

Range Trees

RK	rajan published an article Jan. 23, 2020 (Updated Oct. 19, 2019) ⋅ 1958 views

How to prepare for Google Kickstart – a CodeJam competition?

RK	rajan published an article Jan. 23, 2020 (Updated Sept. 28, 2019) ⋅ 100 views

HackersFriend Graduated from Y Combinator's Startup School

RK	rajan published an article Jan. 23, 2020 (Updated Aug. 17, 2019) ⋅ 125 views

Find maximum occurring character in a string

RK	rajan published an article Jan. 23, 2020 (Updated Aug. 16, 2019) ⋅ 409 views

Sort an array without changing position of negative numbers

RK	rajan published an article Jan. 23, 2020 (Updated Aug. 14, 2019) ⋅ 153 views

What is Binary Search Tree (BST) ?

RK	rajan published an article Jan. 23, 2020 (Updated Aug. 13, 2019) ⋅ 151 views

Merge two Binary search Trees with constant extra space

RK	rajan published an article Jan. 23, 2020 (Updated Aug. 2, 2019) ⋅ 989 views

How to generate OTP (One time password) using python

RK	rajan published an article Jan. 23, 2020 (Updated July 25, 2019) ⋅ 269 views

Get current weather of any city with python using openweathermap API

RK	rajan published an article Jan. 23, 2020 (Updated July 25, 2019) ⋅ 754 views

Getting real time currency exchange rate using Python

RK	rajan published an article Jan. 23, 2020 (Updated July 23, 2019) ⋅ 119 views

Find prime numbers in the first half and second half of an array

RK	rajan published an article Jan. 23, 2020 (Updated July 18, 2019) ⋅ 100 views

Django optimizing Database queries

RK	rajan published an article Jan. 23, 2020 (Updated July 16, 2019) ⋅ 1188 views

Check whether two strings contain same characters in same order

RK	rajan published an article Jan. 23, 2020 (Updated July 16, 2019) ⋅ 669 views

Count duplicates in a given linked list

RK	rajan published an article Jan. 23, 2020 (Updated July 13, 2019) ⋅ 172 views

Function Pointers in C++

RK	rajan published an article Jan. 23, 2020 (Updated July 12, 2019) ⋅ 226 views

Remove an element to maximize the GCD of a given array

RK	rajan published an article Jan. 23, 2020 (Updated July 9, 2019) ⋅ 615 views

Find Sum of all Submatrices of a Given Matrix

RK	rajan published an article Jan. 23, 2020 (Updated June 6, 2019) ⋅ 103 views

Length of longest sub-array with maximum arithmetic mean

RK	rajan published an article Jan. 23, 2020 (Updated May 29, 2019) ⋅ 152 views

Learn Full stack development from scratch part - 1 ( step by step guide )

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 23, 2019) ⋅ 141 views

Shuffle elements of an Array most efficient way , Fisher Yates shuffle algorithm

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 21, 2019) ⋅ 88 views

Top 10 jobs that will have high demand in future

RK	rajan published an article Jan. 23, 2020 (Updated Jan. 21, 2019) ⋅ 104 views

Top 5 Tv shows Programmers must watch