結果
問題 | No.430 文字列検索 |
ユーザー | ei1333333 |
提出日時 | 2019-11-04 20:08:57 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 13 ms / 2,000 ms |
コード長 | 6,043 bytes |
コンパイル時間 | 2,115 ms |
コンパイル使用メモリ | 219,184 KB |
実行使用メモリ | 7,672 KB |
最終ジャッジ日時 | 2024-11-10 00:36:38 |
合計ジャッジ時間 | 2,738 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 13 ms
7,672 KB |
testcase_02 | AC | 4 ms
5,248 KB |
testcase_03 | AC | 4 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 1 ms
5,248 KB |
testcase_06 | AC | 1 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 7 ms
5,600 KB |
testcase_12 | AC | 7 ms
5,628 KB |
testcase_13 | AC | 7 ms
5,628 KB |
testcase_14 | AC | 6 ms
5,592 KB |
testcase_15 | AC | 6 ms
5,596 KB |
testcase_16 | AC | 5 ms
5,596 KB |
testcase_17 | AC | 6 ms
5,464 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using int64 = long long; const int mod = 998244353; const int64 infll = (1LL << 62) - 1; const int inf = (1 << 30) - 1; struct IoSetup { IoSetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); cerr << fixed << setprecision(10); } } iosetup; template< typename T1, typename T2 > ostream &operator<<(ostream &os, const pair< T1, T2 > &p) { os << p.first << " " << p.second; return os; } template< typename T1, typename T2 > istream &operator>>(istream &is, pair< T1, T2 > &p) { is >> p.first >> p.second; return is; } template< typename T > ostream &operator<<(ostream &os, const vector< T > &v) { for(int i = 0; i < (int) v.size(); i++) { os << v[i] << (i + 1 != v.size() ? " " : ""); } return os; } template< typename T > istream &operator>>(istream &is, vector< T > &v) { for(T &in : v) is >> in; return is; } template< typename T1, typename T2 > inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); } template< typename T1, typename T2 > inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); } template< typename T = int64 > vector< T > make_v(size_t a) { return vector< T >(a); } template< typename T, typename... Ts > auto make_v(size_t a, Ts... ts) { return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...)); } template< typename T, typename V > typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) { t = v; } template< typename T, typename V > typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) { for(auto &e : t) fill_v(e, v); } template< typename F > struct FixPoint : F { FixPoint(F &&f) : F(forward< F >(f)) {} template< typename... Args > decltype(auto) operator()(Args &&... args) const { return F::operator()(*this, forward< Args >(args)...); } }; template< typename F > inline decltype(auto) MFP(F &&f) { return FixPoint< F >{forward< F >(f)}; } template< int char_size > struct TrieNode { int nxt[char_size]; int exist; vector< int > accept; TrieNode() : exist(0) { memset(nxt, -1, sizeof(nxt)); } }; template< int char_size, int margin > struct Trie { using Node = TrieNode< char_size >; vector< Node > nodes; int root; Trie() : root(0) { nodes.push_back(Node()); } void update_direct(int node, int id) { nodes[node].accept.push_back(id); } void update_child(int node, int child, int id) { ++nodes[node].exist; } void add(const string &str, int str_index, int node_index, int id) { if(str_index == str.size()) { update_direct(node_index, id); } else { const int c = str[str_index] - margin; if(nodes[node_index].nxt[c] == -1) { nodes[node_index].nxt[c] = (int) nodes.size(); nodes.push_back(Node()); } add(str, str_index + 1, nodes[node_index].nxt[c], id); update_child(node_index, nodes[node_index].nxt[c], id); } } void add(const string &str, int id) { add(str, 0, 0, id); } void add(const string &str) { add(str, nodes[0].exist); } void query(const string &str, const function< void(int) > &f, int str_index, int node_index) { for(auto &idx : nodes[node_index].accept) f(idx); if(str_index == str.size()) { return; } else { const int c = str[str_index] - margin; if(nodes[node_index].nxt[c] == -1) return; query(str, f, str_index + 1, nodes[node_index].nxt[c]); } } void query(const string &str, const function< void(int) > &f) { query(str, f, 0, 0); } int count() const { return (nodes[0].exist); } int size() const { return ((int) nodes.size()); } }; template< int char_size, int margin > struct AhoCorasick : Trie< char_size + 1, margin > { using Trie< char_size + 1, margin >::Trie; const int FAIL = char_size; vector< int > correct; void build(bool heavy = true) { correct.resize(this->size()); for(int i = 0; i < this->size(); i++) { correct[i] = (int) this->nodes[i].accept.size(); } queue< int > que; for(int i = 0; i <= char_size; i++) { if(~this->nodes[0].nxt[i]) { this->nodes[this->nodes[0].nxt[i]].nxt[FAIL] = 0; que.emplace(this->nodes[0].nxt[i]); } else { this->nodes[0].nxt[i] = 0; } } while(!que.empty()) { auto &now = this->nodes[que.front()]; correct[que.front()] += correct[now.nxt[FAIL]]; que.pop(); for(int i = 0; i < char_size; i++) { if(~now.nxt[i]) { int fail = now.nxt[FAIL]; while(this->nodes[fail].nxt[i] == -1) fail = this->nodes[fail].nxt[FAIL]; this->nodes[now.nxt[i]].nxt[FAIL] = this->nodes[fail].nxt[i]; if(heavy) { auto &u = this->nodes[now.nxt[i]].accept; auto &v = this->nodes[this->nodes[fail].nxt[i]].accept; vector< int > accept; set_union(begin(u), end(u), begin(v), end(v), back_inserter(accept)); u = accept; } que.emplace(now.nxt[i]); } else { now.nxt[i] = this->nodes[now.nxt[FAIL]].nxt[i]; } } } } map< int, int > match(const string &str, int now = 0) { map< int, int > result; for(auto &c : str) { now = this->nodes[now].nxt[c - margin]; for(auto &v : this->nodes[now].accept) result[v] += 1; } return result; } pair< int, int > move(const char &c, int now = 0) { now = this->nodes[now].nxt[c - margin]; return {correct[now], now}; } pair< int64_t, int > move(const string &str, int now = 0) { int64_t sum = 0; for(auto &c : str) { auto nxt = move(c, now); sum += nxt.first; now = nxt.second; } return {sum, now}; } }; int main() { string S; int M; cin >> S; cin >> M; AhoCorasick< 26, 'A' > aho; for(int i = 0; i < M; i++) { string T; cin >> T; aho.add(T); } aho.build(); cout << aho.move(S).first << endl; }