#define PROBLEM "https://yukicoder.me/problems/no/430" #include"../AhoCorasick.hpp" #include "../../util/template.hpp" int main(){ string s; cin>>s; lint q; cin>>q; AhoCorasick aho; while(q--){ string t; cin>>t; aho.insert(t); } cout<<aho.count(s)<<endl; }
#line 1 "string/test/YUKI_Aho_Corasick.test.cpp" #define PROBLEM "https://yukicoder.me/problems/no/430" #line 2 "string/AhoCorasick.hpp" #include<string> #include<queue> /** * @brief Aho-Corasick法 */ class AhoCorasick{ struct node; using np=node*; constexpr static int num=26; constexpr static char base='A'; struct node{ np ch[num]; np link=nullptr; int val=0; node(){ for(int i=0;i<num;++i)ch[i]=nullptr; } }; np root=new node(); np root_par=new node(); public: AhoCorasick(){ root->link=root_par; for(int i=0;i<num;++i)root_par->ch[i]=root; } void insert(std::string v){ np t=root; int idx=0; while(idx<(int)v.size()){ if(!t->ch[v[idx]-base])t->ch[v[idx]-base]=new node(); t=t->ch[v[idx]-base]; idx++; } t->val++; } void build(){ built=1; std::queue<np>que; que.push(root); while(!que.empty()){ np t=que.front(); que.pop(); for(int i=0;i<num;++i){ if(!t->ch[i])continue; if(t==root){ t->ch[i]->link=t; }else{ np s=t->link; while(!s->ch[i]){ s=s->link; } t->ch[i]->link=s->ch[i]; } que.push(t->ch[i]); } } } bool built=0; int count(std::string v){ if(!built){build();built=1;} np t=root; int idx=0; int res=0; while(idx<(int)v.size()){ while(!t->ch[v[idx]-base]){ if(t==root){ idx++; if(idx==(int)v.size())return res; }else{ t=t->link; } } t=t->ch[v[idx++]-base]; auto s=t; while(s!=root){ res+=s->val; s=s->link; } } return res; } int find_first(std::string v){ if(!built){build();built=1;} np t=root; int idx=0; int res=0; while(idx<(int)v.size()){ while(!t->ch[v[idx]-base]){ if(t==root){ res++; idx++; if(idx==(int)v.size())return -1; }else{ res++; t=t->link; } } t=t->ch[v[idx++]-base]; if(t->val>0)return res; } return -1; } }; #line 2 "util/template.hpp" #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx2") #include<bits/stdc++.h> using namespace std; struct __INIT__{__INIT__(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}}__INIT__; typedef long long lint; #define INF (1LL<<60) #define IINF (1<<30) #define EPS (1e-10) #define endl ('\n') typedef vector<lint> vec; typedef vector<vector<lint>> mat; typedef vector<vector<vector<lint>>> mat3; typedef vector<string> svec; typedef vector<vector<string>> smat; template<typename T>using V=vector<T>; template<typename T>using VV=V<V<T>>; template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;} template<typename T>inline void output2(T t){for(auto i:t)output(i);} template<typename T>inline void debug(T t){bool f=0;for(auto i:t){cerr<<(f?" ":"")<<i;f=1;}cerr<<endl;} template<typename T>inline void debug2(T t){for(auto i:t)output(i);} #define loop(n) for(long long _=0;_<(long long)(n);++_) #define _overload4(_1,_2,_3,_4,name,...) name #define __rep(i,a) repi(i,0,a,1) #define _rep(i,a,b) repi(i,a,b,1) #define repi(i,a,b,c) for(long long i=(long long)(a);i<(long long)(b);i+=c) #define rep(...) _overload4(__VA_ARGS__,repi,_rep,__rep)(__VA_ARGS__) #define _overload3_rev(_1,_2,_3,name,...) name #define _rep_rev(i,a) repi_rev(i,0,a) #define repi_rev(i,a,b) for(long long i=(long long)(b)-1;i>=(long long)(a);--i) #define rrep(...) _overload3_rev(__VA_ARGS__,repi_rev,_rep_rev)(__VA_ARGS__) // #define rep(i,...) for(auto i:range(__VA_ARGS__)) // #define rrep(i,...) for(auto i:reversed(range(__VA_ARGS__))) // #define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i) // #define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i) // #define irep(i) for(lint i=0;;++i) // inline vector<long long> range(long long n){if(n<=0)return vector<long long>();vector<long long>v(n);iota(v.begin(),v.end(),0LL);return v;} // inline vector<long long> range(long long a,long long b){if(b<=a)return vector<long long>();vector<long long>v(b-a);iota(v.begin(),v.end(),a);return v;} // inline vector<long long> range(long long a,long long b,long long c){if((b-a+c-1)/c<=0)return vector<long long>();vector<long long>v((b-a+c-1)/c);for(int i=0;i<(int)v.size();++i)v[i]=i?v[i-1]+c:a;return v;} // template<typename T>inline T reversed(T v){reverse(v.begin(),v.end());return v;} #define all(n) begin(n),end(n) template<typename T,typename E>bool chmin(T& s,const E& t){bool res=s>t;s=min<T>(s,t);return res;} template<typename T,typename E>bool chmax(T& s,const E& t){bool res=s<t;s=max<T>(s,t);return res;} const vector<lint> dx={1,0,-1,0,1,1,-1,-1}; const vector<lint> dy={0,1,0,-1,1,-1,1,-1}; #define SUM(v) accumulate(all(v),0LL) template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else return vector(arg,make_vector<T>(x,args...));} #define extrep(v,...) for(auto v:__MAKE_MAT__({__VA_ARGS__})) #define bit(n,a) ((n>>a)&1) vector<vector<long long>> __MAKE_MAT__(vector<long long> v){if(v.empty())return vector<vector<long long>>(1,vector<long long>());long long n=v.back();v.pop_back();vector<vector<long long>> ret;vector<vector<long long>> tmp=__MAKE_MAT__(v);for(auto e:tmp)for(long long i=0;i<n;++i){ret.push_back(e);ret.back().push_back(i);}return ret;} using graph=vector<vector<int>>; template<typename T>using graph_w=vector<vector<pair<int,T>>>; template<typename T,typename E>ostream& operator<<(ostream& out,pair<T,E>v){out<<"("<<v.first<<","<<v.second<<")";return out;} constexpr inline long long powll(long long a,long long b){long long res=1;while(b--)res*=a;return res;} #line 4 "string/test/YUKI_Aho_Corasick.test.cpp" int main(){ string s; cin>>s; lint q; cin>>q; AhoCorasick aho; while(q--){ string t; cin>>t; aho.insert(t); } cout<<aho.count(s)<<endl; }