結果
| 問題 | No.430 文字列検索 | 
| コンテスト | |
| ユーザー |  idat_50me | 
| 提出日時 | 2023-10-04 01:05:43 | 
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                TLE
                                 
                             | 
| 実行時間 | - | 
| コード長 | 3,389 bytes | 
| コンパイル時間 | 2,147 ms | 
| コンパイル使用メモリ | 205,932 KB | 
| 最終ジャッジ日時 | 2025-02-17 04:13:40 | 
| ジャッジサーバーID (参考情報) | judge4 / judge2 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | -- * 4 | 
| other | AC * 1 TLE * 1 -- * 12 | 
ソースコード
#line 1 "test/yuki_0430.test.cpp"
#define PROBLEM "https://yukicoder.me/problems/no/430"
#ifndef call_include
#define call_include
#include <bits/stdc++.h>
using namespace std;
#endif
#line 2 "string/rolling_hash.cpp"
#ifndef call_include
#define call_include
#include <bits/stdc++.h>
using namespace std;
#endif
#line 2 "math/montgomery.cpp"
#ifndef call_include
#define call_include
#include <bits/stdc++.h>
using namespace std;
#endif
struct Montgomery {
	const long long P;
	const int R_bit = 32;
	const long long R = (1ll << R_bit);
	const long long R2;
	long long P2 = 0;
	const long long mask = (1ll << R_bit) - 1;
	Montgomery(const long long mod) : P(mod), R2(R % P * R % P) {
		long long t = 0, vi = 1;
		int ni = R_bit;
		while(ni--) {
			if((t & 1) == 0) {
				t += P;
				P2 += vi;
			}
			t >>= 1;
			vi <<= 1;
		}
	}
	long long reduction(long long x) {
		unsigned long long ret = x * P2;
		ret &= mask;
		ret *= P;
		ret += x;
		ret >>= R_bit;
		if(ret >= P) ret -= P;
		return ret;
	}
	long long conv_mg(long long x) {
		return reduction(x * R2);
	}
	long long mul(long long a, long long b) {
		return reduction(reduction(a * b) * R2);
	}
};
#line 10 "string/rolling_hash.cpp"
struct RollingHash {
private:
	const int N;
	const long long MOD1 = 1000000007;
	const long long MOD2 = 1992732529;
	Montgomery mg1 = Montgomery(MOD1);
	Montgomery mg2 = Montgomery(MOD2);
	long long base1, base2, base1_mg, base2_mg;
	vector<long long> hash1, hash2, pw1, pw2;
public:
	RollingHash(string &s) :
		N(s.size()),
		hash1(N + 1, 0),
		hash2(N + 1, 0),
		pw1(N + 1, mg1.conv_mg(1)),
		pw2(N + 1, mg2.conv_mg(1)) {
		random_device rd;
		mt19937 mt(rd());
		uniform_int_distribution<long long> dist1(257, MOD1 - 2);
		uniform_int_distribution<long long> dist2(257, MOD2 - 2);
		base1 = dist1(mt);
		base2 = dist2(mt);
		base1_mg = mg1.conv_mg(base1);
		base2_mg = mg2.conv_mg(base2);
		for(int i = 0; i < N; i++) {
			pw1[i + 1] = mg1.reduction(pw1[i] * base1_mg);
			pw2[i + 1] = mg2.reduction(pw2[i] * base2_mg);
			hash1[i + 1] = mg1.reduction(hash1[i] * base1_mg) + int(s[i]);
			hash2[i + 1] = mg2.reduction(hash2[i] * base2_mg) + int(s[i]);
			if(hash1[i + 1] >= MOD1) hash1[i + 1] -= MOD1;
			if(hash2[i + 1] >= MOD2) hash2[i + 1] -= MOD2;
		}
	}
	pair<long long, long long> get(int l, int r) {
		assert(l <= r);
		assert(0 <= l and r <= N);
		long long h1 = hash1[r] - mg1.reduction(hash1[l] * pw1[r - l]);
		long long h2 = hash2[r] - mg2.reduction(hash2[l] * pw2[r - l]);
		if(h1 < 0) h1 += MOD1;
		if(h2 < 0) h2 += MOD2;
		return pair(h1, h2);
	}
	vector<int> iscontain(string &t) {
		const int M = t.size();
		if(N < M) return {};
		vector<int> ret;
		long long h1_t = 0, h2_t = 0;
		for(int i = 0; i < M; i++) {
			h1_t = mg1.reduction(h1_t * base1_mg) + int(t[i]);
			h2_t = mg2.reduction(h2_t * base2_mg) + int(t[i]);
			if(h1_t >= MOD1) h1_t -= MOD1;
			if(h2_t >= MOD2) h2_t -= MOD2;
		}
		for(int i = 0; i + M <= N; i++) {
			pair<long long, long long> p = get(i, i + M);
			if(p.first == h1_t and p.second == h2_t) ret.emplace_back(i);
		}
		return ret;
	}
};
#line 10 "test/yuki_0430.test.cpp"
int main() {
	string S;
	int M;
	vector<string> C;
	cin >> S >> M;
	C.resize(M);
	for(int i = 0; i < M; i++) cin >> C[i];
	RollingHash rh(S);
	long long ans = 0;
	for(int i = 0; i < M; i++) {
		ans += rh.iscontain(C[i]).size();
	}
	cout << ans << endl;
}
            
            
            
        