foo.cc:2:2: error: invalid preprocessing directive #includ; did you mean #include?
 #includ<cmath>
  ^~~~~~
  include
foo.cc: In function 'void mov(int, int, int, int)':
foo.cc:12:15: error: 'pow' was not declared in this scope
         step+=pow(2,n-1);
               ^~~

正在同步测试数据，请稍后
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。