Log in the SDU cloud with your SDU email credentials.
Choose Files from the Menu on the left and create a new directory, eg,
dm560. Upload there your c++ files

Choose Apps from the Menu on the left

Search “Coder C++”

Run the Coder C++ application.

Mount as additional folder the previosuly created folder dm560.

Submit and go to the Web Interface. You will be presented with a Visual Studio Code interface. You can learn more about it from the Welcome page.
Choose File and edit your new file by typing in your C++ code. Save
the file in the mounted directory dm560.

To compile the code, choose Terminal from the menu on the top and move
to the dm560 directory:
cd ../Home/dm560
Then type:
g++ -o hello hello.cpp