answer.code: In function ‘void build_hmap(std::vector<std::__cxx11::basic_string<char> >&, std::vector<std::vector<long long int> >&, long long int, long long int)’:
answer.code:35:26: error: invalid operands of types ‘<unresolved overloaded function type>’ and ‘long long int’ to binary ‘operator*’
   35 |       hmap[i][j] = (prev * K + (mp[i-1][j-1] == 'o')) % MOD;
      |                     ~~~~~^~~
answer.code:36:23: error: overloaded function with no contextual type information
   36 |       prev = hmap[i][j];
      |                       ^
answer.code: In function ‘long long int get_subtable(std::vector<std::vector<long long int> >&, long long int, long long int, long long int, long long int, long long int, long long int)’:
answer.code:42:90: error: ‘M’ was not declared in this scope
   42 |   return (hmap[i2][j2] - hmap[i2][j1] - hmap[i1][j2] + hmap[i1][j1]) * pw(K, MOD - (i1 * M + j1) % (MOD - 1), MOD);
      |                                                                                          ^
answer.code: In function ‘void check()’:
answer.code:46:23: error: ‘N’ was not declared in this scope
   46 |   for (int i = 0; i < N; i++) {
      |                       ^
answer.code:47:25: error: ‘M’ was not declared in this scope
   47 |     for (int j = 0; j < M; j++) {
      |                         ^
answer.code:48:11: error: ‘mp’ was not declared in this scope; did you mean ‘mp2’?
   48 |       if (mp[i][j] == 'x') continue;
      |           ^~
      |           mp2
answer.code: In function ‘int main()’:
answer.code:62:14: error: expected ‘)’ before ‘;’ token
   62 |   rotate(mp2);
      |              ^
      |              )
answer.code:61:6: note: to match this ‘(’
   61 |   if (check();
      |      ^
answer.code:62:9: error: could not convert ‘rotate(mp2)’ from ‘void’ to ‘bool’
   62 |   rotate(mp2);
      |   ~~~~~~^~~~~
      |         |
      |         void