Cod sursa(job #3282310)

Utilizator brianabucur11Briana Bucur brianabucur11 Data 4 martie 2025 23:14:10
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.65 kb
#include <bits/stdc++.h>

using namespace std;

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

const int nmax=25e4+5;
int n, m, dp[20][nmax];

int query (int x, int k)
{
    for (int i=0; i<20; i++)
    {
        if ((1<<i)&k)
            x=dp[i][x];
    }
    return x;
}

int main()
{
    fin >> n >> m;
    for (int i=1; i<=n; i++)
        fin >> dp[0][i];
    for (int i=1; i<20; 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++)
    {
        int x, k;
        fin >> x >> k;
        fout << query(x,k) << '\n';
    }
    return 0;
}