結果
| 問題 | No.430 文字列検索 |
| コンテスト | |
| ユーザー |
arktan763
|
| 提出日時 | 2019-11-22 04:11:16 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
AC
|
| 実行時間 | 17 ms / 2,000 ms |
| コード長 | 7,238 bytes |
| 記録 | |
| 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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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 14 |
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";
}
arktan763