Cod sursa(job #2324203)

Utilizator TudorCaloianCaloian Tudor-Ioan TudorCaloian Data 20 ianuarie 2019 13:30:18
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.63 kb
#include <bits/stdc++.h>

using namespace std;

ifstream fin("stramosi.in");
ofstream fout("stramosi.out");

int n, m, dp[50][250005];

int main()
{
    fin >> n >> m;
    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++)
        {
            int k = dp[i-1][j];
            dp[i][j] = dp[i-1][k];
        }
    while(m--)
    {
        int p, q;
        fin >> q >> p;

        int x = q;
        for(int i = 0; (1<<i) <= p; i++)
            if((1<<i)&p)
                x = dp[i][x];

        fout << x << '\n';
    }
    return 0;
}