Cod sursa(job #1856780)

Utilizator bt.panteaPantea Beniamin bt.pantea Data 25 ianuarie 2017 14:02:42
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.52 kb
#include <iostream>
#include <fstream>
#define NMAX 250005
using namespace std;
ifstream f ("stramosi.in");
ofstream g ("stramosi.out");
int n, m, a[22][NMAX], q, p, i, j;
int main()
{
    f>>n>>m;
    for (i=1;i<=n;i++)
        f>>a[0][i];
    for (i=1;(1<<i)<=n;i++)
        for (j=1;j<=n;j++)
            a[i][j]=a[i-1][a[i-1][j]];
    while(m--)
    {
        f>>q>>p;
        for (i = 0; (1<<i) <= p; i++)
            if ((1<<i) & p)
                q = a[i][q];
        g<< q<<'\n';
    }
    return 0;
}