Cod sursa(job #2591220)

Utilizator adimiclaus15Miclaus Adrian Stefan adimiclaus15 Data 30 martie 2020 00:43:50
Problema NFA Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.41 kb
#include <bits/stdc++.h>
using namespace std;

ifstream f("nfa.in");
ofstream g("nfa.out");

const int SIGMA=26;
const int NMAX=300;
const int LGMAX=200;
int start;
char c;
bool stari_finale[NMAX+1];
vector <int> tranzitii[NMAX+1][SIGMA];
bool incoada[NMAX+1][LGMAX+1];
bool nfa(string s)
{
    for(int i=1;i<=NMAX;i++)
    {
        for(int j=1;j<=LGMAX;j++)
            incoada[i][j]=0;
    }
    queue < pair<int,int> > coada;
    int sz=s.size();
    coada.push({start,0});
    incoada[start][0]=1;
    while(!coada.empty())
    {
        int x=coada.front().first;
        int d=coada.front().second;
        if(d==sz && stari_finale[x])
            return 1;
        incoada[x][d]=0;
        coada.pop();
        int lit=s[d]-'a';
        for(unsigned int i=0;i<tranzitii[x][lit].size();i++)
        {
            int nod=tranzitii[x][lit][i];
            if(!incoada[nod][d+1])
            {
                coada.push({nod,d+1});
                incoada[nod][d+1]=1;
            }
        }
    }
    return 0;
}
int main()
{
    int x,y,k,n,m,q;
    f>>n>>m>>k;
    f>>start;
    for(int i=1;i<=k;i++)
    {
        f>>x;
        stari_finale[x]=1;
    }
    while(m--)
    {
        f>>x>>y>>c;
        tranzitii[x][c-'a'].push_back(y);
    }
    f>>q;
    while(q--)
    {
        string cuv;
        f>>cuv;
        g<<nfa(cuv)<<"\n";
    }
    return 0;
}