Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:20:17: error: ‘bignum’ was not declared in this scope array<array<bignum, 1001>, 2> d = {}; ^ user.cpp:20:29: error: template argument 1 is invalid array<array<bignum, 1001>, 2> d = {}; ^ user.cpp:20:33: error: template argument 1 is invalid array<array<bignum, 1001>, 2> d = {}; ^ user.cpp:20:37: error: invalid type in declaration before ‘=’ token array<array<bignum, 1001>, 2> d = {}; ^ user.cpp:24:14: error: invalid types ‘int[int]’ for array subscript d[i%2] = d[(i+1)%2]; ^ user.cpp:24:27: error: invalid types ‘int[int]’ for array subscript d[i%2] = d[(i+1)%2]; ^ user.cpp:26:18: error: invalid types ‘int[int]’ for array subscript d[i%2][gcd_table[j][x]] += d[(i+1)%2][j]; } ^ user.cpp:26:49: error: invalid types ‘int[int]’ for array subscript d[i%2][gcd_table[j][x]] += d[(i+1)%2][j]; } ^ user.cpp:27:16: error: invalid types ‘int[int]’ for array subscript ++d[i%2][x]; } ^ user.cpp:28:19: error: invalid types ‘int[int]’ for array subscript g << d[(n+1)%2][1] << '\n'; ^