Cod sursa(job #3216598)

Utilizator lalabengBizniz Man lalabeng Data 18 martie 2024 13:27:26
Problema NFA Scor 40
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.06 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[1001];
char z;
int m,y,start,query;
unordered_map<int,int>v;
struct pct
{
    int x,y;
};
vector<pct>a[N];
bool check(string s,int poz, int nod)
{
    if(poz==s.size())
    {
        for(int i=1;i<=nr_fn;i++)
            if(fn[i]==nod)
            return true;
        return false;
    }
    bool mx=0;
    for(auto vec: a[nod])
        if(vec.y==s[poz])
        {
            mx=max(mx,check(s,poz+1,vec.x));
            if(mx==1)
                return true;
        }
    return mx;
}
int main()
{
    f>>n>>m>>nr_fn>>start;
    for(int i=1;i<=nr_fn;i++)
        f>>fn[i];
    for(int i=1;i<=m;i++)
    {
        f>>x>>y>>z;
        a[x].push_back({y,z});
    }
    f>>query;
    while(query--)
    {
        string s;
        f>>s;
        if(check(s,0,start))
            g<<1;
        else
            g<<0;
        g<<'\n';
    }
    return 0;
}