View Compilation Error

0_0_36500576_28608.cpp: In function 'void ud(int, int, int, int, int, int)':
0_0_36500576_28608.cpp:27:26: error: expected primary-expression before '|' token
  sgt[k]=sgt[k<<1]&sgt[k<<|1];
                          ^
0_0_36500576_28608.cpp: In function 'int qr(int, int, int, int, int)':
0_0_36500576_28608.cpp:35:20: error: expected primary-expression before '|' token
   sgt[k<<1]=sgt[k<<|1]=lz[k];
                    ^
0_0_36500576_28608.cpp:45:15: error: expected primary-expression before '|' token
   if (!sgt[k<<|1] && md<tr){
               ^