Method Hashing

Strings/String Hashing 2D.cpp:11–11

  int n, m;
  static const int PX = 3731,  PY = 2999, mod = 998244353;
  Hashing() {}
  Hashing(vector<string>& s) {
    n = (int)s.size(), m = (int)s[0].size();
    hs.assign(n + 1, vector<int>(m + 1, 0));