View Compilation Error

0_0_25025558_6032.cpp: In member function 'void LCT::clean(int)':
0_0_25025558_6032.cpp:63:11: error: 'n' was not declared in this scope
   For(i,0,n)add[i]=rev[i]=f[i]=ls(i)=rs(i)=0;
           ^
0_0_25025558_6032.cpp:6:38: note: in definition of macro 'For'
 #define For(i,j,k) for(int i=(j);i<=(k);++i)
                                      ^