View Compilation Error

0_0_39335427_10383.cpp: In function 'Poly::Poly Poly::qqpow(Poly, ll, ll)':
0_0_39335427_10383.cpp:194:39: error: 'L' was not declared in this scope
  194 |             ans[i] = ans[i] * qpow(a, L) % P;
      |                                       ^