Update main.py

main.py

@@ -357,7 +357,7 @@ async def submit_answers(submission: Submission = Body(...)):
         message = f"Submission received, but no valid/matching task IDs were found in the {total_attempted_in_payload} answers provided."
         logger.warning(f"No valid answers processed for {submission.username} out of {total_attempted_in_payload} submitted.")
     else:
-        score = round((correct_count / valid_attempted_count) * 100, 2)
+        score = round((correct_count / len(ground_truth_answers)) * 100, 2)
         message = f"Score calculated successfully: {correct_count}/{valid_attempted_count} correct answers for valid tasks."
         if valid_attempted_count < total_attempted_in_payload:
              message += f" ({total_attempted_in_payload - valid_attempted_count} submitted answers had invalid or duplicate task IDs)."