View Compilation Error

0_0_29966351_28688.cpp: In function 'bool Miller_Rabbin(long long int, long long int)':
0_0_29966351_28688.cpp:40:24: error: 'pow_mod' was not declared in this scope
  ll t = pow_mod(a, d, n);    //a^d取一次余判断 
                        ^
0_0_29966351_28688.cpp:46:22: error: 'add_mod' was not declared in this scope
   t = add_mod(t, t, n);    // 快乘 
                      ^
0_0_29966351_28688.cpp: In function 'int main()':
0_0_29966351_28688.cpp:98:49: error: 'add_mod' was not declared in this scope
    else ans = add_mod(ans, q_pow(i, n - 2, n), n);
                                                 ^