View Compilation Error

0_0_21940175_25569.cpp: In function 'int main()':
0_0_21940175_25569.cpp:133:34: error: no matching function for call to 'AC_auto::go(int&, int&)'
         printf("%d\n",ac.go(len,k));
                                  ^
0_0_21940175_25569.cpp:133:34: note: candidate is:
0_0_21940175_25569.cpp:87:9: note: int AC_auto::go(int, int, int)
     int go(int len,int m,int kd)
         ^
0_0_21940175_25569.cpp:87:9: note:   candidate expects 3 arguments, 2 provided