string test_board_3[] = {"XOXOX", "--OOX", "---XX", "--O-X", "--O-X"}; int size_3 = 5; read_board_from_string(board, test_board_3, size_3); cout << count_unknown_squares(board, size_3) << endl; string test_board_5[] = {"XOXOX-", "--OOX-", "---XX-", "--O-X-", "--O-X-", "--O-X-"}; int size_5 = 6; read_board_from_string(board, test_board_5, size_5); cout << count_unknown_squares(board, size_5) << endl;