Compiler
Now if you are using C++ as your primary coding language you have to install a gcc compiler (Linux users can skip this step as most of the Linux Distros come with a compiler :)), If you are unsure if you have a gcc compiler or not; open-shell(ie cmd) and execute following code. If you get a answer then you are ready to go. If not(ie system do not understand the command) you have to install a compiler first.
g++ –version
Download MinGW compiler
Setting up a C++ Competitive Programming Environment
In this article, we will learn about how to setup all in one Competitive Programming Environment