Cod sursa(job #1827766)

Utilizator cubaLuceafarul cuba Data 12 decembrie 2016 12:10:28
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.66 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, p, q, x;
    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;
}