du2/program.c

@@ -52,10 +52,10 @@ int main() {
             count++;
         }
     }
-    
+
     if (loaded == 0) {
-        printf("Nepodarilo nacitat nic\n");
-        return 0;
+        fprintf(stderr, "Chyba: nepodarilo sa nacitat ziadny zaznam.\n");
+        return 1;
     }
 
     qsort(students, count, sizeof(Student), cmp);