結果
問題 | No.430 文字列検索 |
ユーザー | arktan763 |
提出日時 | 2019-11-22 04:11:16 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 17 ms / 2,000 ms |
コード長 | 7,238 bytes |
コンパイル時間 | 2,120 ms |
コンパイル使用メモリ | 187,292 KB |
実行使用メモリ | 11,872 KB |
最終ジャッジ日時 | 2024-11-10 00:38:31 |
合計ジャッジ時間 | 2,459 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 1 ms
5,248 KB |
testcase_01 | AC | 17 ms
11,872 KB |
testcase_02 | AC | 6 ms
5,732 KB |
testcase_03 | AC | 7 ms
5,732 KB |
testcase_04 | AC | 1 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 | 12 ms
7,776 KB |
testcase_12 | AC | 11 ms
7,792 KB |
testcase_13 | AC | 12 ms
7,904 KB |
testcase_14 | AC | 10 ms
7,780 KB |
testcase_15 | AC | 10 ms
7,776 KB |
testcase_16 | AC | 8 ms
7,904 KB |
testcase_17 | AC | 8 ms
7,776 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define int long long // #define double long double #define FOR(i, a, b) for(int i = (a); i < (b); ++i) #define FORR(i, a, b) for(int i = (a); i > (b); --i) #define REP(i, n) for(int i = 0; i < (n); ++i) #define REPR(i, n) for(int i = n; i >= 0; i--) #define FOREACH(x, a) for(auto &(x) : (a)) #define VECCIN(x) \ for(auto &youso_ : (x)) cin >> youso_ #define bitcnt(x) __builtin_popcount(x) #define lbit(x) __builtin_ffsll(x) #define rbit(x) __builtin_clzll(x) #define SZ(x) ((long long)(x).size()) #define fi first #define se second #define All(a) (a).begin(), (a).end() #define rAll(a) (a).rbegin(), (a).rend() #define cinfast() cin.tie(0), ios::sync_with_stdio(false) #define PERM(c) \ sort(All(c)); \ for(bool cp = true; cp; cp = next_permutation(All(c))) #define MKORDER(n) \ vector<int> od(n); \ iota(All(od), 0LL); template <typename T = long long> inline T IN() { T x; cin >> x; return (x); } inline void CIN() {} template <class Head, class... Tail> inline void CIN(Head &&head, Tail &&... tail) { cin >> head; CIN(move(tail)...); } #define CCIN(...) \ char __VA_ARGS__; \ CIN(__VA_ARGS__) #define DCIN(...) \ double __VA_ARGS__; \ CIN(__VA_ARGS__) #define LCIN(...) \ long long __VA_ARGS__; \ CIN(__VA_ARGS__) #define SCIN(...) \ string __VA_ARGS__; \ CIN(__VA_ARGS__) #define Yes(a) cout << (a ? "Yes" : "No") << "\n" #define YES(a) cout << (a ? "YES" : "NO") << "\n" #define Printv(v) \ { \ FOREACH(x, v) { cout << x << " "; } \ cout << "\n"; \ } template <typename T = string> inline void eputs(T s) { cout << s << "\n"; exit(0); } template <typename A, size_t N, typename T> void Fill(A (&array)[N], const T &val) { std::fill((T *)array, (T *)(array + N), val); } template <typename T> using PQG = priority_queue<T, vector<T>, greater<T>>; template <typename T> using PQ = priority_queue<T>; typedef long long ll; typedef vector<ll> VL; typedef vector<VL> VVL; typedef pair<ll, ll> PL; typedef vector<PL> VPL; typedef vector<bool> VB; typedef vector<double> VD; typedef vector<string> VS; const int INF = 1e9; const int MOD = 1e9 + 7; // const int MOD = 998244353; const ll LINF = 1e18; const double PI = atan(1.0) * 4.0; const ll dw[] = {1, 1, 0, -1, -1, -1, 0, 1}; const ll dh[] = {0, 1, 1, 1, 0, -1, -1, -1}; #define PI 3.141592653589793238 template <size_t X> struct Trie { struct Node { char c; array<int, X> nxt; vector<int> idxs; int idx; Node(char c) : c(c), idx(-1) { fill(nxt.begin(), nxt.end(), -1); } }; using F = function<int(char)>; vector<Node> vs; F conv; Trie(F conv, char c = '$') : conv(conv) { vs.emplace_back(c); } inline int &next(int i, int j) { return vs[i].nxt[j]; } void add(const string &s, int x) { int pos = 0; for(int i = 0; i < (int)s.size(); i++) { int k = conv(s[i]); if(~next(pos, k)) { pos = next(pos, k); continue; } int npos = vs.size(); next(pos, k) = npos; vs.emplace_back(s[i]); pos = npos; } vs[pos].idx = x; vs[pos].idxs.emplace_back(x); } //文字列丸ごと検索 int find(const string &s) { int pos = 0; for(int i = 0; i < (int)s.size(); i++) { int k = conv(s[i]); if(next(pos, k) < 0) return -1; pos = next(pos, k); } return idx(pos); } //頂点移動 int move(int pos, char c) { assert(pos < (int)vs.size()); return pos < 0 ? -1 : next(pos, conv(c)); } //子供の数 int size() { return vs.size(); } int idx(int pos) { return pos < 0 ? -1 : vs[pos].idx; } //対応するパターンのindex vector<int> idxs(int pos) { return pos < 0 ? vector<int>() : vs[pos].idxs; } }; template <size_t X> struct AhoCorasick : Trie<X + 1> { using TRIE = Trie<X + 1>; using TRIE::next; using TRIE::TRIE; vector<int> cnt; void build(int heavy = true) { auto &vs = TRIE::vs; int n = vs.size(); cnt.resize(n); for(int i = 0; i < n; i++) { if(heavy) sort(vs[i].idxs.begin(), vs[i].idxs.end()); cnt[i] = vs[i].idxs.size(); } queue<int> que; for(int i = 0; i < (int)X; i++) { if(~next(0, i)) { next(next(0, i), X) = 0; que.emplace(next(0, i)); } else { next(0, i) = 0; } } while(!que.empty()) { auto &x = vs[que.front()]; int fail = x.nxt[X]; cnt[que.front()] += cnt[fail]; que.pop(); for(int i = 0; i < (int)X; i++) { int &nx = x.nxt[i]; if(nx < 0) { nx = next(fail, i); continue; } que.emplace(nx); next(nx, X) = next(fail, i); if(heavy) { auto &idx = vs[nx].idxs; auto &idy = vs[next(fail, i)].idxs; vector<int> idz; set_union(idx.begin(), idx.end(), idy.begin(), idy.end(), back_inserter(idz)); idx = idz; } } } } vector<int> match(string s, int heavy = true) { auto &vs = TRIE::vs; vector<int> res(heavy ? TRIE::size() : 1); int pos = 0; for(auto &c : s) { pos = next(pos, TRIE::conv(c)); if(heavy) for(auto &x : vs[pos].idxs) res[x]++; else res[0] += cnt[pos]; } return res; } int count(int pos) { return cnt[pos]; } }; auto f = [](char c) { return c - 'A'; }; AhoCorasick<26> aho(f); signed main() { SCIN(S); LCIN(M); VS C(M); REP(i, M) { cin >> C[i]; aho.add(C[i], i); } aho.build(); int l = S.size(); int pos = 0; ll ans = 0; REP(i, l) { pos = aho.move(pos, S[i]); ans += aho.count(pos); } cout << ans << "\n"; }