This is a result of late night call from my dad asking me if I remember/know a mobile carrier of one of our contacts. There is an easy way to find this by opening any mobile recharge apps and put the details if suggests you the carrier details but that might proved to be wrong once you move closer to recharge, and so you have to go back repeat the step with multiple operators until you get success. ...

I had a couple of Raspberry Pi 3 (a credit card size SBC) with me, and I wanted to build something to satisfy my DIY spirit in me. If you search on the Internet, everyone will suggest you build a Home Server 😄 I had also recently replaced all the old HDD in home computers with SSDs, which means the systems were substantially fast now but had low storage capacity. So the project of building a NAS or Home Server was a good fit for my home. ...

In one of the online coding interviews I was given a problem to create a snake game we all played in old days. The problem statement was something like this given the moves you have to determine after how many moves the snake will eat himself. I was able to solve the problem, but as I was solving it I was thinking "can I can give this code a little more life with javascript". ...

The Game of Life, also known simply as Life, is a cellular automaton devised by the British mathematician John Horton Conway in 1970. for more detail check Wikipedia In short, the game is a 2D grid that has the following rules Game Rules Any live cell with fewer than two live neighbours dies, as if by underpopulation. Any live cell with two or three live neighbours lives on to the next generation. Any live cell with more than three live neighbours dies, as if by overpopulation. Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction. I just wanted to implement this game for fun :blush: , Marking of initial alive cells is little tricky on touchscreen devices. ...

We are going to serialize a binary tree to an array, A binary tree is a tree data structure. Each node can have 0-2 children(s). visualization of a binary tree 2 / \ / \ / \ 1 3 / \ / \ 0 7 9 1 / / \ / \ 2 1 0 8 8 Representation of a Node A node should contain the data(value) and reference to child nodes. A simple class like Node below will work for us. ...

One of my non-techie friends was starting a new business and he wanted an Invoicing System. he reached out to me hoping that I can help him with a small website or app Open Source Software to rescue If this was me a couple of years earlier I would have started the typical Software Development Life Cycle for a new project, but this new me is lazy. So, I searched the web to find a decent open-source project that can fulfil his needs for now, I came across this project it looked very interesting to me, it was using LaTeX to generate the invoice since I had no experience in the tools I refrained to use it (although I would love to explore it). after going through a couple of interesting looking projects, I found something familiar ...

I use ubuntu as my daily driver so all the commands are going to be ubuntu/debian based Installation Install conky-all package by sudo apt-get install conky-all Setup conky takes a config file to know what to draw on screen. the default location of config file is ~/.conkyrc Run you can start the conky by just typing conky in terminal, and a and ugly black window should come up. Customization There are thousands of options to pick conky config, and if that’s not enough you can just google for more. I’ll add a link to my favorites one here, Conky Orange its 11 years old still looks decent ...

>>> uptime 09:20:04 up 13:22, 5 users, load average: 0.11, 0.31, 0.42 Load average is those three numbers. It gives an idea about how busy the system is. It shows load for last 1, 5 and 15 mins, A common misconception is that it just shows how business of the CPU. It also considers other IO operations. Read the post below that explains when and how it is the way it is. ...

Hey Guys, wondering why I am here once again with this “factorial” thing? You will get to know it in no time..just keep reading! Let’s calculate some of the factorials: 1! = 1 2! = 2 3! = 6 4! = 24 5! = 120 6! = 720 ...

Hey! Today i am gonna show you how to calculate factorial of a number. The code below depicts the basic methodology of how to calculate factorial of a number. # include<stdio.h> void factorial(int number){ int i; long long int factorial=1; for ( i = number ; i > 0 ; i-- ) factorial*=i; // Printing the factorial of the number **/ printf("Factorial of %d = %lld",number,factorial); return 0; } int main(){ // Declaring variables **/ int num; // Asking and scanning input **/ printf("Enter a number : "); scanf("%d",&num); // Passing number to the function **/ factorial(num); return 0; } output of above code will be ...