Cod sursa(job #1235994)

Utilizator Vally77FMI Calinescu Valentin Gelu Vally77 Data 1 octombrie 2014 02:05:57
Problema Stramosi Scor 90
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.59 kb
#include <fstream>
using namespace std;
ifstream ka("stramosi.in");
ofstream ki("stramosi.out");

const int N_MAX = 250010;
const int LOG_MAX = 18;

int stramos[N_MAX + 1][LOG_MAX + 1];

int n, m, p, q, f;

int main()
{
    ka >> n >> m;
    for(int i = 1; i <= n; i++)
        ka >> stramos[i][0];
    for(int j = 1; j <= LOG_MAX; j++)
        for(int i = 1; i <= n; i++)
            stramos[i][j] = stramos[stramos[i][j-1]][j-1];
    while(m--)
    {
        ka >> q >> p;
        for(f = 18; f >= 0; f--)
            if(p & (1 << f))
                q = stramos[q][f];
        ki << q << '\n';
    }
}