AC自动机

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#include<bits/stdc++.h>
using namespace std;
int T;
int n;
int aid[200001];
struct node{
int num;
int ch[26];
int fail;
int rd;
}tree[2000001];
int tot;
string s;
inline void build(int now)
{
cin>>s;
int x=0;
for(int i=0;i<s.length();i++)
{
int c=s[i]-'a';
if(!tree[x].ch[c])
{
tree[x].ch[c]=++tot;
}
x=tree[x].ch[c];
}
aid[now]=x;
return ;
}
queue<int> q;
inline void build_failtree()
{
for(int i=0;i<=25;i++)
{
if(tree[0].ch[i])
{
q.push(tree[0].ch[i]);
}
}
while(!q.empty())
{
int x=q.front();
q.pop();
for(int i=0;i<=25;i++)
{
if(tree[x].ch[i])
{
q.push(tree[x].ch[i]);
}
}
for(int i=0;i<=25;i++)
{
if(tree[tree[x].fail].ch[i])
{
if(tree[x].ch[i])
{
tree[tree[x].ch[i]].fail=tree[tree[x].fail].ch[i];
tree[tree[tree[x].fail].ch[i]].rd++;
}
else
{
tree[x].ch[i]=tree[tree[x].fail].ch[i];
}
}
}
}
return ;
}
inline void query()
{
int x=0;
cin>>s;
for(int i=0;i<s.length();i++)
{
int c=s[i]-'a';
x=tree[x].ch[c];
tree[x].num++;
}
return ;
}
int main()
{
cin>>n;
for(int i=1;i<=n;i++)
{
build(i);
}
build_failtree();
query();
for(int i=1;i<=tot;i++)
{
if(!tree[i].rd)
{
q.push(i);
}
}
while(!q.empty())
{
int x=q.front();
q.pop();
tree[tree[x].fail].num+=tree[x].num;
tree[tree[x].fail].rd--;
if(!tree[tree[x].fail].rd)
{
q.push(tree[x].fail);
}
}
for(int i=1;i<=n;i++)
{
cout<<tree[aid[i]].num<<endl;
}
return 0;
}