結果
問題 | No.430 文字列検索 |
ユーザー | Haar |
提出日時 | 2019-05-17 18:47:26 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 20 ms / 2,000 ms |
コード長 | 3,400 bytes |
コンパイル時間 | 2,030 ms |
コンパイル使用メモリ | 195,548 KB |
実行使用メモリ | 10,052 KB |
最終ジャッジ日時 | 2024-11-10 00:25:47 |
合計ジャッジ時間 | 2,685 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 20 ms
10,052 KB |
testcase_02 | AC | 7 ms
5,248 KB |
testcase_03 | AC | 6 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 1 ms
5,248 KB |
testcase_07 | AC | 1 ms
5,248 KB |
testcase_08 | AC | 3 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 14 ms
6,500 KB |
testcase_12 | AC | 15 ms
6,824 KB |
testcase_13 | AC | 14 ms
6,952 KB |
testcase_14 | AC | 12 ms
6,076 KB |
testcase_15 | AC | 9 ms
5,536 KB |
testcase_16 | AC | 9 ms
5,920 KB |
testcase_17 | AC | 9 ms
5,796 KB |
ソースコード
#include <bits/stdc++.h> #define FOR(v, a, b) for(int v = (a); v < (b); ++v) #define FORE(v, a, b) for(int v = (a); v <= (b); ++v) #define REP(v, n) FOR(v, 0, n) #define REPE(v, n) FORE(v, 0, n) #define REV(v, a, b) for(int v = (a); v >= (b); --v) #define ALL(x) (x).begin(), (x).end() #define RALL(x) (x).rbegin(), (x).rend() #define ITR(it, c) for(auto it = (c).begin(); it != (c).end(); ++it) #define RITR(it, c) for(auto it = (c).rbegin(); it != (c).rend(); ++it) #define EXIST(c,x) ((c).find(x) != (c).end()) #define LLI long long int #define fst first #define snd second #define popcount __builtin_popcount #ifdef DEBUG #include <misc/C++/Debug.cpp> #else #define dump(x) ((void)0) #endif #define gcd __gcd using namespace std; template <class T> constexpr T lcm(T m, T n){return m/gcd(m,n)*n;} template <typename I> void join(ostream &ost, I s, I t, string d=" "){for(auto i=s; i!=t; ++i){if(i!=s)ost<<d; ost<<*i;}ost<<endl;} template <typename T> istream& operator>>(istream &is, vector<T> &v){for(auto &a : v) is >> a; return is;} template <typename T, typename U> istream& operator>>(istream &is, pair<T,U> &p){is >> p.first >> p.second; return is;} template <typename T, typename U> bool chmin(T &a, const U &b){return (a>b ? a=b, true : false);} template <typename T, typename U> bool chmax(T &a, const U &b){return (a<b ? a=b, true : false);} template <typename T, size_t N, typename U> void fill_array(T (&a)[N], const U &v){fill((U*)a, (U*)(a+N), v);} class AhoCorasick{ public: int n; vector<unordered_map<char,int>> trie; vector<int> failure_edge; vector<string> dict; vector<vector<int>> dict_index; AhoCorasick(): n(1), trie(1), failure_edge(1){ } void add(const string &s){ dict.push_back(s); int cur = 0; REP(i,(int)s.size()){ char c = s[i]; if(EXIST(trie[cur], c)){ cur = trie[cur][c]; }else{ ++n; trie.resize(n); trie[cur][c] = n-1; cur = trie[cur][c]; } } dict_index.resize(n); dict_index[cur].push_back(dict.size()-1); } void construct_failure_link(){ failure_edge.resize(n); queue<int> dq; dq.push(0); while(not dq.empty()){ int cur = dq.front(); dq.pop(); for(auto &kv : trie[cur]){ char c = kv.fst; int next = kv.snd; if(cur == 0){ failure_edge[next] = 0; }else{ int i = failure_edge[cur]; int j = 0; while(1){ if(EXIST(trie[i], c)){ j = trie[i][c]; break; }else{ if(i == 0) break; i = failure_edge[i]; } } failure_edge[next] = j; for(auto k : dict_index[failure_edge[next]]){ dict_index[next].push_back(k); } } dq.push(next); } } } vector<pair<int,int>> find(const string &s){ vector<pair<int,int>> ret; int cur = 0; REP(i,(int)s.size()){ char c = s[i]; while(cur != 0 and not EXIST(trie[cur], c)){ cur = failure_edge[cur]; } cur = trie[cur][c]; for(auto j : dict_index[cur]){ ret.push_back({i, j}); } } return ret; } }; int main(){ cin.tie(0); ios::sync_with_stdio(false); string S; int M; while(cin >> S >> M){ vector<string> C(M); cin >> C; AhoCorasick ac; REP(i,M){ ac.add(C[i]); } ac.construct_failure_link(); auto ret = ac.find(S); dump(ret); int ans = ret.size(); cout << ans << endl; } return 0; }