View Compilation Error

0_0_38740850_22473.cpp: In function 'int main()':
0_0_38740850_22473.cpp:79:7: error: invalid types 'int [1000010][double]' for array subscript
   79 |     nf[1e6] = fpow(f[1e6], mod -2);
      |       ^
0_0_38740850_22473.cpp:79:21: error: invalid types 'int [1000010][double]' for array subscript
   79 |     nf[1e6] = fpow(f[1e6], mod -2);
      |                     ^