Default case added --> Invalid arguments message #16

hangman.c

@@ -66,7 +66,10 @@ int main(int argc, char **argv) {
             gs->trollEnabled = 1;
             break;
         default:
-
+            mvprintw(gs->centery, gs->centerx - 9, "Invalid arguments.");
+            getch();
+            showHelp(gs);
+            exit(0);
             break;
         }
     }