Vitux published a tutorial about installing GNU G++ (C++) compiler and toolchain on Ubuntu 20.04.

How to Install GNU G++ (C++) Compiler and Toolchain on Ubuntu 20.04

GNU C++ is a compiler for the C++ programming language from the GNU Compiler Collection. It runs on Linux, Windows, and Mac OS. Its main purpose is to convert source code into an executable file (.exe) that can run on.
 

How to Install GNU G++ (C++) Compiler and Toolchain on Ubuntu 20.04 – VITUX