Cod sursa(job #2942224)

Utilizator PatruMihaiPatru Mihai PatruMihai Data 19 noiembrie 2022 13:22:01
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <bits/stdc++.h>

using namespace std;

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

const int LMAX = 20;
const int NMAX = 250007;

int dp[NMAX][LMAX];

int main()
{
    int n, m;
    fin >> n >> m;
    
    for (int i = 1; i <= n; i++)
    {
        fin >> dp[i][0];
        for (int j = 1; j < LMAX; j++)
        {
            dp[i][j] = dp[dp[i][j - 1]][j - 1];
        }
    }

   for(int i = 1; i <= m; i++)
    {
       int q, p;
        fin >> q >> p;

        for (int j = LMAX - 1; j >= 0; j--)
        {
            if (p & (1 << j))
            {
                q = dp[q][j];
            }
        }

        fout << q << "\n";
    }
    return 0;
}