Mai intai trebuie sa te autentifici.
Cod sursa(job #3216605)
Utilizator | Data | 18 martie 2024 13:49:43 | |
---|---|---|---|
Problema | NFA | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 1.21 kb |
#include <fstream>
#include <unordered_map>
#include <vector>
using namespace std;
ifstream f("nfa.in");
ofstream g("nfa.out");
const int N=1e4+5;
int n,x,k;
int nr_fn,fn[2000];
char z;
int cplm[2000][200];
int m,y,start,query;
struct pct
{
int x,y;
};
vector<int>a[N][200];
bool check(string s,int poz, int nod)
{
if(poz==s.size())
{
return fn[nod];
}
bool mx=0;
for(auto vec: a[nod][int(s[poz])])
if(cplm[vec][poz+1]==false)
{
cplm[vec][poz+1]=true;
mx=max(mx,check(s,poz+1,vec));
if(mx==1)
return true;
}
return mx;
}
int main()
{
f>>n>>m>>nr_fn>>start;
for(int i=1;i<=nr_fn;i++)
{
f>>x;
fn[x]=1;
}
for(int i=1;i<=m;i++)
{
f>>x>>y>>z;
a[x][int(z)].push_back(y);
}
f>>query;
while(query--)
{
string s;
f>>s;
for(int i=1;i<=n;i++)
for(int j=0;j<=s.size();j++)
cplm[i][j]=0;
cplm[start][0]=true;
if(check(s,0,start))
g<<1;
else
g<<0;
g<<'\n';
}
return 0;
}