Cod sursa(job #2590779)

Utilizator Botzki17Botocan Cristian-Alexandru Botzki17 Data 28 martie 2020 21:14:26
Problema NFA Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.22 kb
#include <fstream>
#include <vector>
#include <queue>
#include <bitset>
using namespace std;
ifstream fin("nfa.in");
ofstream fout("nfa.out");
const int NMAX = 300;
struct graf{
    int nod;
    char ch;
};
vector<graf>g[NMAX+5];
string sir;
bitset <NMAX+5>finale;
int viz[NMAX+5][155];

bool dfs(int nod, int index)
{
    int i;
    viz[nod][index] = 1;
    if(index == sir.size())
       return finale[nod];
    bool ok = false;
    for(i=0;i<g[nod].size(); i++)
    {
        if(g[nod][i].ch == sir[index] && viz[g[nod][i].nod][index] ==-1)
            {
                ok = dfs(g[nod][i].nod, index+1);
                if(ok == true)
                    break;
            }
    }
    return ok;

}

int main()
{
   int n, m, k, s, i, x, y, q;
   fin>>n>>m>>k>>s;
   graf aux;
   for(i=1;i<=k;i++)
   {
       fin>>x;
       finale[x]=1;
   }
   for(i=1;i<=m;i++)
   {
       fin>>x>>y>>sir;
       aux.ch = sir[0];
       aux.nod =y;
       g[x].push_back(aux);
   }
   fin>>q;
   for(int t=1;t<=q;t++)
   {

      fin>>sir;
      for(i=1;i<=n;i++)
         for(int j=0;j<=sir.size();j++)
              viz[i][j] = -1;
      fout<<dfs(s, 0)<<"\n";


   }



    return 0;
}