結果
| 問題 | No.430 文字列検索 | 
| コンテスト | |
| ユーザー |  | 
| 提出日時 | 2022-12-25 14:41:02 | 
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 24 ms / 2,000 ms | 
| コード長 | 3,315 bytes | 
| コンパイル時間 | 2,628 ms | 
| コンパイル使用メモリ | 222,788 KB | 
| 最終ジャッジ日時 | 2025-02-09 20:53:59 | 
| ジャッジサーバーID (参考情報) | judge4 / judge3 | 
(要ログイン)
| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 4 | 
| other | AC * 14 | 
ソースコード
#line 1 "A.cpp"
// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define endl "\n"
void print(){
	cout << '\n';
}
template <class Head, class... Tail>
void print(Head &&head, Tail &&... tail) {
	cout << head;
	if (sizeof...(Tail)) cout << ' ';
  	print(forward<Tail>(tail)...);
}
template<typename T>
void print(vector<T> &A){
	int n = A.size();
	for(int i = 0; i < n; i++){
		cout << A[i];
		if(i == n - 1) cout << '\n';
		else cout << ' ';
	}
}
template<typename T, typename S>
void prisep(vector<T> &A, S sep){
	int n = A.size();
	for(int i = 0; i < n; i++){
		cout << A[i];
		if(i == n - 1) cout << '\n';
		else cout << sep;
	}
}
template<typename T>
void print(vector<vector<T>> &A){
	for(auto &row: A) print(row);
}
#line 3 "Library/C++/string/AhoCorasick.hpp"
using namespace std;
struct AhoCorasick{
    vector<string> words;
    vector<map<char, int>> children;
    vector<vector<int>> match;
    vector<int> failure;
    AhoCorasick(){}
    void registe(string word){
        words.push_back(word);
    }
    void build(){
        children.assign(1, {});
        match.assign(1, {});
        for(int i = 0; i < words.size(); i++){
            _register(i, words[i]);
        }
        failure.resize(children.size());
        _create_failure();
    }
    void _register(int i, string &word){
        int k = 0;
        for(auto s:word){
            if(children[k].count(s)) k = children[k][s];
            else{
                int le = children.size();
                children[k][s] = le;
                children.push_back({});
                match.push_back({});
                k = le;
            }
        }
        match[k].push_back(i);
    }
    void _create_failure(){
        queue<int> que;
        for(auto tmp:children[0]) que.push(tmp.second);
        while(!que.empty()){
            int k = que.front();
            int b = failure[k]; que.pop();
            for(auto tmp:children[k]){
                int j = tmp.second;
                failure[j] = _next(b, tmp.first);
                match[j].insert(match[j].end(), match[failure[j]].begin(), match[failure[j]].end());
                que.push(j);
            }            
        }
    }
    int _next(int k, char s){
        while(1){
            if(children[k].count(s)) return children[k][s];
            else if(k == 0) return 0;
            k = failure[k];
        }
    }
    vector<vector<int>> search(string text){
        int k = 0;
        int le = text.size();
        vector<vector<int>> matched(le, vector<int>());
        for(int i = 0; i < le; i++){
            k = _next(k, text[i]);
            for(auto m:match[k]){
                matched[i - words[m].size() + 1].push_back(m);
            }
        }
        return matched;
    }
};
#line 46 "A.cpp"
void solve(){
    string S;
	int n;
	cin >> S >> n;
	AhoCorasick ac;
	for(int i = 0; i < n; i++){
		string T;
		cin >> T;
		ac.registe(T);
	}
	ac.build();
	auto match = ac.search(S);
	int ls = S.size();
	int ans = 0;
	for(int i = 0; i < match.size(); i++){
		ans += match[i].size();
	}
	print(ans);
}
int main(){
    cin.tie(0)->sync_with_stdio(0);
    int t;
    t = 1;
    // cin >> t;
    while(t--) solve();
	return 0;
}
            
            
            
        