Cod sursa(job #1822801)

Utilizator Dobricean_IoanDobricean Ionut Dobricean_Ioan Data 5 decembrie 2016 16:35:16
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.73 kb
#include<fstream>
#define NMAX 250005
#define LMAX 20
using namespace std;
int n, m, d[LMAX][NMAX], p, q;
ifstream cin("stramosi.in");
ofstream cout("stramosi.out");
int main()
{
    cin >> n >> m;
    for(int i = 1; i <= n; i++)
    {
        cin >> d[0][i];
    }
 
    for(int i = 1; ( 1 << i ) <= n; i++)
    {
        for(int j = 1; j <= n; j++)
        {
            p = d[i - 1][j];
 
            d[i][j] = d[i - 1][p];
        }
    }
 
    for(int i = 1; i <= m; i++)
    {
        cin >> q >> p;
        for(int j = 0; ( 1 << j ) <= p; j++)
        {
            if((p & ( 1 << j )) > 0)
            {
                q = d[j][q];
 
                p ^= (1 << j);
            }
        }
        cout << q << "\n";
    }
    return 0;
}