Cod sursa(job #2071609)

Utilizator papinub2Papa Valentin papinub2 Data 20 noiembrie 2017 20:19:44
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.66 kb
#include <fstream>
#include <vector>
#include <algorithm>

using namespace std;

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

int n, m, q, p, rez, aux;
int dp[20][250005];

int main()
{
    in >> n >> m;

    for (int i = 1; i <= n; i++)
        in >> dp[0][i];

    for (int i = 1; (1<<i) <= n; i++)
        for (int j = 1; j <= n; j++)
            dp[i][j] = dp[i - 1][dp[i - 1][j]];

    for (int i = 1; i <= m; i++)
    {
        in >> q >> p;

        aux = q;

        for (int i = 0; (1<<i) <= p; i++)
            if (p & (1<<i))
                aux = dp[i][aux];

        out << aux << '\n';
    }

    return 0;
}