correct some errors

bonus/checker_bonus.c

@@ -63,9 +63,15 @@ static int	tester(t_stacks *stacks)
 		buf = get_next_line(0);
 	}
 	if (!is_stacks_b_empty(stacks))
-		return (secure_write(1, "KO\n", 3));
+	{
+		secure_write(1, "KO\n", 3);
+		return (0);
+	}
 	if (!check_order(stacks->a))
-		return (secure_write(1, "KO\n", 3));
+	{
+		secure_write(1, "KO\n", 3);
+		return (0);
+	}
 	secure_write(1, "OK\n", 3);
 	return (0);
 }

flags/flag.c

@@ -70,12 +70,12 @@ void	flags(int pos, int pos_b, char **argv, t_stacks *stacks)
 	{
 		stacks->algo = 2;
 		medium(stacks);
-	}	
+	}
 	else if (ft_strncmp(argv[pos], "--complex", 30) && pos > 0)
 	{
 		stacks->algo = 3;
 		complex(stacks);
-	}	
+	}
 	else if (ft_strncmp(argv[pos], "--adaptive", 30) && pos > 0)
 		adaptive(stacks, argv);
 	else