View Compilation Error

0_0_25385212_41.cpp: In member function 'void K::work()':
0_0_25385212_41.cpp:25:4: error: 'm' was not declared in this scope
    m+=y*6;
    ^
0_0_25385212_41.cpp:36:6: error: 'h' was not declared in this scope
   if(h>=24)h-=24;
      ^
0_0_25385212_41.cpp:37:6: error: 'h' was not declared in this scope
   if(h<0)h+=24;
      ^