View Compilation Error

0_0_39808777_8578.cpp: In function 'void factorial_init(ll)':
0_0_39808777_8578.cpp:165:5: error: 'f' was not declared in this scope
  165 |     f[0] = 1;
      |     ^
0_0_39808777_8578.cpp: In function 'll C(ll, ll)':
0_0_39808777_8578.cpp:174:16: error: 'f' was not declared in this scope
  174 |         return f[a] * get_inverse(f[b], prime) % prime * get_inverse(f[a - b], prime) % prime;
      |                ^
0_0_39808777_8578.cpp:174:23: error: 'get_inverse' was not declared in this scope
  174 |         return f[a] * get_inverse(f[b], prime) % prime * get_inverse(f[a - b], prime) % prime;
      |                       ^~~~~~~~~~~