Cod sursa(job #1723962)

Utilizator cubaLuceafarul cuba Data 1 iulie 2016 22:07:40
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <bits/stdc++.h>
using namespace std;
ifstream f("stramosi.in");
ofstream g("stramosi.out");

const int NMAX = 250003;
int dp[20][NMAX];

int main()
{
    int n, m, x, p, q;
    f>> n >> m;
    for(int i = 1; i<=n ; i++)
    {
        f>> x;
        dp[0][i] = x;
    }
    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++)
    {
        f>> p >> q;
        for(int j = 0; j <= 20 ; j++)
        {
             if( q & (1<<j) ){
                p = dp[j][p];
            }
        }
        g<< p << "\n";
    }
    return 0;
}