Cod sursa(job #1416018)

Utilizator morandy14Andreea morandy14 Data 7 aprilie 2015 08:46:21
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.64 kb
#include<iostream>
#include<fstream>
using namespace std;
ifstream fin ("stramosi.in");
ofstream fout ("stramosi.out");

    const int kMaxN = 250005, kMaxLg = 18;

int n, m;
int str[kMaxLg][kMaxN];

int main()
{
    fin >> n >> m;
    for (int i = 1; i <= n; i++)
        fin >> str[0][i];
    for (int i=1;i<kMaxLg;i++)
        for (int j=1;j<=n;j++)
            str[i][j] = str[i - 1][str[i - 1][j]];
    while (m--) {
        int nod, w;
        fin >> nod >> w;
        for (int i = 0; i < kMaxLg; ++i)
            if (w & (1 << i))
                nod = str[i][nod];
        fout << nod << "\n";
    }
    return 0;
}