Cod sursa(job #3233353)

Utilizator cipri05Ciprian Cristescu cipri05 Data 3 iunie 2024 01:23:42
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.7 kb
#include <fstream>

using namespace std;

int par[18][250001];

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

    int n, m;
    fin >> n >> m;

    for (int i = 1; i <= n; i++)
        fin >> par[0][i];

    for (int i = 1; (1 << i) <= n; i++)
        for (int j = 1; j <= n; j++) {
            int k = par[i - 1][j];
            par[i][j] = par[i - 1][k];
        }

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

        int stramos = q;
        for (int j = 0; (1 << j) <= p; j++)
            if (p & (1 << j))
                stramos = par[j][stramos];

        fout << stramos << '\n';
    }

    return 0;
}