Pagini recente » Cod sursa (job #1502625) | Cod sursa (job #1943976) | Cod sursa (job #2874066) | Cod sursa (job #1155166) | Cod sursa (job #1937312)
#include <bits/stdc++.h>
#define maxText 1000005
#define maxLen 10005
#define maxN 105
#define sigma 26
using namespace std;
struct trie
{
trie *fiu[sigma];
trie *fail;
vector<int>_list;
int cnt;
trie()
{
for(int i=0;i<sigma;i++)
fiu[i]=NULL;
fail=NULL;
cnt=0;
}
}*root=new trie();
trie * q[maxLen*maxLen];
int n,i,fq[maxN],st,dr;
char text[maxText],word[maxLen];
queue<trie*>Que;
vector<trie*>node_list;
void _insert(trie *nod,char *s,int idx)
{
if(!*s){
nod->_list.push_back(idx);
return;
}
if(nod->fiu[*s-'a']==NULL)
nod->fiu[*s-'a']=new trie();
_insert(nod->fiu[*s-'a'],s+1,idx);
}
void solve(trie *root, char *str)
{
trie *nod=root;
while(*str)
{
while(nod!=root && nod->fiu[*str-'a']==NULL)
nod=nod->fail;
if(nod->fiu[*str-'a']!=NULL)
nod=nod->fiu[*str-'a'];
nod->cnt++;
str++;
}
for(int i=dr;i>=1;i--)
{
for(auto idx:q[i]->_list)
fq[idx]+=q[i]->cnt;
if(q[i]->fail!=NULL)
q[i]->fail->cnt+=q[i]->cnt;
}
}
int main()
{
freopen("ahocorasick.in","r",stdin);
freopen("ahocorasick.out","w",stdout);
scanf("%s",text);
scanf("%d",&n);
for(i=1;i<=n;i++){
scanf("%s",word);
_insert(root,word,i);
}
root->fail=root;
for(int i=0;i<sigma;i++)
if(root->fiu[i]){
root->fiu[i]->fail=root;
Que.push(root->fiu[i]);
}
q[st=dr=1]=root;
while(st<=dr)
{
trie *nod=q[st];
for(int i=0;i<sigma;i++)
{
if(nod->fiu[i])
{
trie *failnod=nod->fail;
while(failnod!=root && failnod->fiu[i]==NULL)
failnod=failnod->fail;
if(failnod->fiu[i]!=NULL && failnod->fiu[i]!=nod->fiu[i])
failnod=failnod->fiu[i];
nod->fiu[i]->fail=failnod;
q[++dr]=nod->fiu[i];
}
}
st++;
}
solve(root,text);
for(i=1;i<=n;i++)
printf("%d\n",fq[i]);
return 0;
}