結果
| 問題 | No.430 文字列検索 | 
| コンテスト | |
| ユーザー |  unagiunag | 
| 提出日時 | 2019-09-28 03:35:49 | 
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 899 ms / 2,000 ms | 
| コード長 | 4,033 bytes | 
| コンパイル時間 | 862 ms | 
| コンパイル使用メモリ | 101,288 KB | 
| 実行使用メモリ | 5,248 KB | 
| 最終ジャッジ日時 | 2024-11-10 00:34:53 | 
| 合計ジャッジ時間 | 10,258 ms | 
| ジャッジサーバーID (参考情報) | judge5 / judge1 | 
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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 <cassert>
#include <cstdio>
#include <cmath>
#include <iostream>
#include <iomanip>
#include <sstream>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <numeric>
#include <algorithm>
using namespace std;
using lint = long long;
constexpr int MOD = 1000000007, INF = 1010101010;
constexpr lint LINF = 1LL << 60;
template <class T>
ostream &operator<<(ostream &os, const vector<T> &vec) {
	for (const auto &e : vec) os << e << (&e == &vec.back() ? "" : " ");
	return os;
}
#ifdef _DEBUG
template <class T>
void dump(const char* str, T &&h) { cerr << str << " = " << h << "\n"; };
template <class Head, class... Tail>
void dump(const char* str, Head &&h, Tail &&... t) {
	while (*str != ',') cerr << *str++; cerr << " = " << h << "\n";
	dump(str + (*(str + 1) == ' ' ? 2 : 1), t...);
}
#define DMP(...) dump(#__VA_ARGS__, __VA_ARGS__)
#else 
#define DMP(...) ((void)0)
#endif
template<int Modulo = MOD> struct Mint {
	lint val;
	constexpr Mint(lint v = 0) noexcept : val(v % Modulo) { if (val < 0) v += Modulo; }
	constexpr Mint& operator += (const Mint &r) noexcept {
		val += r.val;
		if (val >= Modulo) val -= Modulo;
		return *this;
	}
	constexpr Mint& operator -= (const Mint &r) noexcept {
		val -= r.val;
		if (val < 0) val += Modulo;
		return *this;
	}
	constexpr Mint& operator *= (const Mint &r) noexcept {
		val = val * r.val % Modulo;
		return *this;
	}
	constexpr Mint& operator /= (const Mint &r) noexcept {
		lint a = r.val, b = Modulo, u = 1, v = 0;
		while (b) {
			lint t = a / b;
			a -= t * b; swap(a, b);
			u -= t * v; swap(u, v);
		}
		val = val * u % Modulo;
		if (val < 0) val += Modulo;
		return *this;
	}
	constexpr Mint operator + (const Mint &r) const noexcept { return Mint(*this) += r; }
	constexpr Mint operator - (const Mint &r) const noexcept { return Mint(*this) -= r; }
	constexpr Mint operator * (const Mint &r) const noexcept { return Mint(*this) *= r; }
	constexpr Mint operator / (const Mint &r) const noexcept { return Mint(*this) /= r; }
	constexpr int getmod() { return Modulo; }
	constexpr Mint operator - () const noexcept { return val ? Modulo - val : 0; }
	constexpr bool operator == (const Mint &r) const noexcept { return val == r.val; }
	constexpr bool operator != (const Mint &r) const noexcept { return val != r.val; }
	friend ostream &operator << (ostream &os, const Mint<Modulo> &x) noexcept { return os << x.val; }
	friend istream &operator >> (istream &is, Mint<Modulo> &x) noexcept {
		lint tmp; is >> tmp;
		x = Mint<Modulo>(tmp);
		return is;
	}
	friend constexpr Mint<Modulo> modpow(const Mint<Modulo> &a, lint n) noexcept {
		Mint res(1), tmp = a;
		while (n > 0) {
			if (n & 1) res *= tmp;
			tmp *= tmp;
			n >>= 1;
		}
		return res;
	}
};
//// mod, base from https://gist.github.com/privet-kitty/295ac9202b7abb3039b493f8238bf40f
template< class Mint1 = Mint<2147483647>, class Mint2 = Mint<2147483629> >
class RollingHash {
private:
	vector<Mint1> hash1, pow1;
	vector<Mint2> hash2, pow2;
	const int base1 = 2147483634;
	const int base2 = 2147483627;
	int sz;
public:
	RollingHash() {}
	RollingHash(const string &s) :sz(s.size()) {
		hash1.assign(sz + 1, 0); pow1.assign(sz + 1, 1);
		hash2.assign(sz + 1, 0); pow2.assign(sz + 1, 1);
		for (int i = 0; i < sz; i++) {
			hash1[i + 1] = hash1[i] * base1 + s[i];
			pow1[i + 1] = pow1[i] * base1;
			hash2[i + 1] = hash2[i] * base2 + s[i];
			pow2[i + 1] = pow2[i] * base2;
		}
	}
	pair<int, int> get(int l, int r) {
		int res1 = (hash1[r] - hash1[l] * pow1[r - l]).val;
		int res2 = (hash2[r] - hash2[l] * pow2[r - l]).val;
		return { res1, res2 };
	}
};
int main() {
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	string S;
	cin >> S;
	RollingHash<> rh(S);
	int N;
	cin >> N;
	int ans = 0;
	for (int i = 0; i < N; i++) {
		string s;
		cin >> s;
		if (s.size() > S.size()) continue;
		RollingHash<> rhs(s);
		for (int j = 0; j <= S.size() - s.size(); j++) {
			if (rh.get(j, j + s.size()) == rhs.get(0, s.size())) ans++;
		}
	}
	cout << ans << "\n";
	return 0;
}
            
            
            
        