Cod sursa(job #2570168)

Utilizator AndreiJJIordan Andrei AndreiJJ Data 4 martie 2020 15:21:37
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.71 kb
#include <fstream>
#include <iostream>

using namespace std;

const int N = 250005;

int dp[21][N], n;

void Read ()
{
    ifstream fin ("stramosi.in");
    int q;
    fin >> n >> q;
    for (int i = 1; i <= n; i++)
        fin >> dp[0][i];
    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]];
    ofstream fout ("stramosi.out");
    while (q--)
    {
        int q, p, x;
        fin >> q >> p;
        x = q;
        for (int i = 0; (1 << i) <= p; i++)
            if ((1 << i) & p)
                x = dp[i][x];
        fout << x << "\n";
    }
    fout.close();
}


int main()
{
    Read();
    return 0;
}