Cod sursa(job #3360155)

Utilizator alexlazuLazureanu Alexandru Ioan alexlazu Data 9 iulie 2026 14:49:59
Problema Stramosi Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.8 kb
#include <algorithm>
#include <cmath>
#include <iostream>
#include <vector>
#include <list>
#include <random>

using namespace std;

const int N = 25e4+1;

int up[20][N], parinte[N];

int n, m;

int main() {
    cin >> n >> m;
    for (int i = 1,x; i <= n; i++)
    {
        cin >> x;
        parinte[i] = x;
    }
    for (int i = 1; i <= n; i++)
    {
        up[0][i] = parinte[i];
    }
    for (int k = 1; k < 20; k++)
    {
        for (int i = 1; i <= n; i++)
        {
            up[k][i] = up[k - 1][up[k - 1][i]];
        }
    }
    for (int i = 1; i <= m; i++)
    {
        int q,p;
        cin >> q >> p;
        for (int k = 0; k < 20; k++)
        {
            if (p & (1 << k))
                q = up[k][q];
        }
        cout << q << '\n';
    }
}