Cod sursa(job #1196885)

Utilizator PaueyPaula Nicoleta Gradu Pauey Data 9 iunie 2014 16:28:23
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.6 kb
#include <fstream>
using namespace std;
int d[20][250005];
int m, n, q, p;
int main()
{
    ifstream in("stramosi.in");
    ofstream out("stramosi.out");
    in >> n >> m;
    for(int i = 1; i <= n; ++i) {
      in >>  d[0][i];
    }
    for(int i = 1; i <= 18; ++i)
      for(int j = 1; j <= n; ++j)
            d[i][j] = d[i - 1][d[i - 1][j]];
    for(int i = 1; i <= m; ++i) {
       in >> q >> p;
       while(p > 0) {
         int p2 = 1, i;
         for(i = 0; p2*2 <= p; ++i) p2 = p2*2;
         q = d[i][q];
         p = p - p2;
      }
      out << q << '\n';
    }
    return 0;
}