- ARRAY<long long, DIR_NUM> su;
- ARRAY<long long, DIR_NUM> sd;
- ARRAY<long long, DIR_NUM> mu;
- ARRAY<long long, DIR_NUM> md;
+ std::array<long long, DIR_NUM> su;
+ std::array<long long, DIR_NUM> sd;
+ std::array<long long, DIR_NUM> mu;
+ std::array<long long, DIR_NUM> md;