結果
| 問題 | No.430 文字列検索 | 
| コンテスト | |
| ユーザー |  risujiroh | 
| 提出日時 | 2019-03-14 14:55:54 | 
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 61 ms / 2,000 ms | 
| コード長 | 2,467 bytes | 
| コンパイル時間 | 1,965 ms | 
| コンパイル使用メモリ | 180,404 KB | 
| 実行使用メモリ | 5,352 KB | 
| 最終ジャッジ日時 | 2024-11-10 00:22:52 | 
| 合計ジャッジ時間 | 2,752 ms | 
| ジャッジサーバーID (参考情報) | judge1 / judge4 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 4 | 
| other | AC * 14 | 
ソースコード
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;
template<class Z> Z rng(Z a, Z b) {
  static mt19937 mt(chrono::steady_clock::now().time_since_epoch().count());
  return uniform_int_distribution<Z>(a, b - 1)(mt);
}
struct RollingHash {
  static constexpr uint64_t P0 = 4e9 + 7;
  static constexpr uint64_t P1 = 4e9 + 9;
  static uint64_t B0;
  static uint64_t B1;
  static V<uint64_t> powB0;
  static V<uint64_t> powB1;
  const int n;
  V<uint64_t> h0;
  V<uint64_t> h1;
  template<class Itr> RollingHash(Itr first, Itr last) : n(distance(first, last)), h0(n + 1), h1(n + 1) {
    for (int i = 0; i < n; ++i, ++first) {
      h0[i + 1] = (h0[i] * B0 + *first) % P0;
      h1[i + 1] = (h1[i] * B1 + *first) % P1;
    }
    while (powB0.size() <= n) {
      powB0.push_back(powB0.back() * B0 % P0);
      powB1.push_back(powB1.back() * B1 % P1);
    }
  }
  uint64_t get0(int l, int r) { return (h0[r] + (P0 - h0[l]) * powB0[r - l]) % P0; }
  uint64_t get1(int l, int r) { return (h1[r] + (P1 - h1[l]) * powB1[r - l]) % P1; }
  bool eq(int l0, int r0, int l1, int r1) {
    return get0(l0, r0) == get0(l1, r1) and get1(l0, r0) == get1(l1, r1);
  }
  template<class Itr> static uint64_t get0(Itr first, Itr last) {
    uint64_t res = 0;
    while (first != last) {
      res = (res * B0 + *first++) % P0;
    }
    return res;
  }
  template<class Itr> static uint64_t get1(Itr first, Itr last) {
    uint64_t res = 0;
    while (first != last) {
      res = (res * B1 + *first++) % P1;
    }
    return res;
  }
};
uint64_t RollingHash::B0 = rng<unsigned>(1, RollingHash::P0);
uint64_t RollingHash::B1 = rng<unsigned>(1, RollingHash::P1);
V<uint64_t> RollingHash::powB0{1};
V<uint64_t> RollingHash::powB1{1};
int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);
  string s; cin >> s;
  int n = s.size();
  RollingHash rh(begin(s), end(s));
  int m; cin >> m;
  map< pair<unsigned, unsigned>, int > mp;
  while (m--) {
    string c; cin >> c;
    unsigned h0 = RollingHash::get0(begin(c), end(c));
    unsigned h1 = RollingHash::get1(begin(c), end(c));
    ++mp[{h0, h1}];
  }
  int res = 0;
  for (int w = 1; w <= 10; ++w) {
    for (int i = 0; i + w <= n; ++i) {
      unsigned h0 = rh.get0(i, i + w);
      unsigned h1 = rh.get1(i, i + w);
      if (!mp.count({h0, h1})) continue;
      res += mp[{h0, h1}];
    }
  }
  cout << res << '\n';
}
            
            
            
        