In file included from /in/Compile/check.cpp:7:
/in/sokoban.hpp:173:22: error: implicit conversion loses integer precision: 'unsigned long' to 'unsigned int' [-Werror,-Wshorten-64-to-32]
            ns->px = nx;
                   ~ ^~
/in/sokoban.hpp:174:22: error: implicit conversion loses integer precision: 'unsigned long' to 'unsigned int' [-Werror,-Wshorten-64-to-32]
            ns->py = ny;
                   ~ ^~
2 errors generated.
/in/Compile/Makefile:16: recipe for target 'main' failed
make: *** [main] Error 1