View Compilation Error

0_0_21756568_4412.cpp: In function 'int main()':
0_0_21756568_4412.cpp:93:9: error: 'p' was not declared in this scope
     if (p == 2 || d == -1) {
         ^
0_0_21756568_4412.cpp:93:9: note: suggested alternative:
0_0_21756568_4412.cpp:43:10: note:   'numbertheory::fieldextension::p'
     ll d,p;
          ^