how to run a c ++ code

installing g++ compiler

1. update your system with

sudo apt-get update

2. install the compiler

you can as well precise the version after the g++

sudo apt-get install g++

compile your code

compile your cpp or cpps files

g++ <name with extension >
# for example 
g++ main.cpp

execute with

./a.out
# not neccessarily the name of the executable is a but here as we didnt precise it it will be to specify it  use 
#alternative
g++ -o main.exe hello.cpp