Cod sursa(job #3297800)

Utilizator avdaneiraduAvadanei Radu Cristian avdaneiradu Data 23 mai 2025 20:18:28
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.62 kb
#include <fstream>
#define nmax 250010
using namespace std;

int main() {
    ifstream cin("stramosi.in");
    ofstream cout("stramosi.out");

    int n, m, x, y, xx, i, j, pred[19][nmax], log2;

    cin >> n >> m;
    for (i = 1; i <= n; i++) cin >> pred[0][i];
    log2 = 0;

    for (i = 1; (1 << i) <= n; i++) {
        for (j = 1; j <= n; j++) pred[i][j] = pred[i - 1][pred[i - 1][j]];
        log2 = i;
    }

    for (i = 1; i <= m; i++) {
        cin >> x >> y;
        for (j = 0; j <= log2; j++)
            if ((y >> j) & 1) x = pred[j][x];
        cout << x << "\n";
    }

    return 0;
}