place your mouse over the Source Files, then right click on the mouse and pick Add Files to Folder
select the various files - .cpp or .c only
place your mouse over the Header Files, then right click on the mouse and pick Add Files to Folder
select the various files - .h only
click on Compile icon or press Ctrl+F7 on your keaboard to compile your project
execute your program by clicking on the Run icon (an exclamation mark) or by pressing Ctrl+F5