P5357 【模板】AC自动机(二次加强版)
非AC版,会T,待更新
#include<iostream> #include<cstdio> #include<queue> #include<algorithm> #include<cmath> #include<ctime> #include<set> #include<map> #include<stack> #include<cstring> #pragma GCC optimize(2) #define inf 2147483647 #define ls rt<<1 #define rs rt<<1|1 #define lson ls,nl,mid,l,r #define rson rs,mid+1,nr,l,r #define N 400010 #define For(i,a,b) for(int i=a;i<=b;++i) #define p(a) putchar(a) #define g() getchar() using namespace std; int n; char s[N],t[2000010]; int d[2000010]; namespace AC{ int tr[N][26],tot; int cnt[N],fail[N],id[N],val[N]; void insert(char *s,int ID){ int u=0; for(int i=1;s[i];i++){ if(!tr[u][s[i]-'a']) tr[u][s[i]-'a']=++tot; u=tr[u][s[i]-'a']; } if(id[u]) d[id[u]]=ID; id[u]=ID; } queue<int>q; void build(){ For(i,0,25) if(tr[0][i]) q.push(tr[0][i]); while(!q.empty()){ int u=q.front();q.pop(); For(i,0,25) if(tr[u][i]){ fail[tr[u][i]]=tr[fail[u]][i]; q.push(tr[u][i]); } else tr[u][i]=tr[fail[u]][i]; } } void query(char *t){ int u=0; for(int i=1;t[i];i++){ u=tr[u][t[i]-'a']; for(int j=u;j;j=fail[j]) val[j]++; } For(i,0,tot) if(id[i]) cnt[id[i]]=val[i]; } } void in(int &x){ int y=1;char c=g();x=0; while(c<'0'||c>'9'){if(c=='-')y=-1;c=g();} while(c<='9'&&c>='0'){ x=(x<<1)+(x<<3)+c-'0';c=g();} x*=y; } void o(int x){ if(x<0){p('-');x=-x;} if(x>9)o(x/10); p(x%10+'0'); } int find(int x){ if(!d[x]) return AC::cnt[x]; return AC::cnt[x]=find(d[x]); } int main(){ in(n); For(i,1,n){ scanf("%s",s+1); AC::insert(s,i); } AC::build(); scanf("%s",t+1); AC::query(t); For(i,1,n) o(find(i)),p('\n'); return 0; }