When you submit the program, you should see a "Turnin Receipt" page that tells you whether we received your files and whether they compiled successfully. If you do not see this page, we did not receive your files, so try again or contact the instructor/TA.
Please read the receipt page carefully after submitting. If your program has any compiler errors, you will see a red failure message after you submit it. You should fix the errors and submit your program again. You can submit as many times as you like; the last one submitted will be graded.