Cod sursa(job #1740162)

Utilizator ArambasaVlad Arambasa Arambasa Data 11 august 2016 00:08:19
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.78 kb
#include <fstream>
#include <vector>
#define nmax 250001
using namespace std;

ifstream in ("stramosi.in");
ofstream out ("stramosi.out");



int n, m;
int T[18][nmax];
vector<vector<int> > g;

int main ()
{
    in>>n>>m;
    g.resize(n+1);
    for (int i = 1; i <= n; i++)
    {
        in >>T[0][i];
        g[T[0][i]].push_back(i);
    }
    for (int i = 1; (1<<i) <= n; i++)
    {
        for (int k = 1; k <= n; k++)
        {
            T[i][k] = T[i-1][T[i-1][k]];
        }
    }
    for (int i = 1; i <= m; i++)
    {
        int res;
        int q,p;
        in>>q>>p;
        for (int j = 0; p; p>>=1, ++j)
        {
            if (p & 1)
            {
                q = T[j][q];
            }
        }
        out<<q<<"\n";
    }
}