Cod sursa(job #1451189)

Utilizator greenadexIulia Harasim greenadex Data 16 iunie 2015 14:47:40
Problema Stramosi Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.63 kb
#include <fstream>

using namespace std;

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

const int MAX = 200000;
int rmq[18][MAX], n, m;

void create_rmq(){
    for (int i = 1; (1 << i) <= n; i++)
        for (int j = 1; j <= n; j++)
        rmq[i][j] = rmq[i - 1][rmq[i - 1][j]];
}

int main()
{
    fin >> n >> m;
    for (int i = 1; i <= n; i++)
        fin >> rmq[0][i];
    create_rmq();
    for (int p, q, sol; m; m--){
        fin >> q >> p;
        for (int i = 0; (1 << i) <= p; i++)
            if ((1 << i) & p)
                q = rmq[i][q];
        fout << q << '\n';
    }
    return 0;
}