Cod sursa(job #2321623)

Utilizator OldpugAlex Ionescu Oldpug Data 16 ianuarie 2019 13:22:11
Problema Stramosi Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.5 kb
#include <fstream>

int mat[25][250001], n, m, i, j, k;

int main() {
  std::ifstream is{"stramosi.in"};

  is >> n >> m;

  for (i = 1; i <= n; ++i)
    is >> mat[0][i];

  for (k = 1; (1 << k) <= n; ++k)
    for (j = 1; j <= n; ++j)
      mat[k][j] = mat[k - 1][mat[k - 1][j]];

  std::ofstream os{"stramosi.out"};

  while (m--) {
    k=0;
    is >> i >> j;

    while (p) {
      if (j & 1)
        i = mat[k][i];

      ++k;
      j >>= 1;
    }

    os << i << '\n';
  }
}