Cod sursa(job #1976320)

Utilizator MiricaMateiMirica Matei MiricaMatei Data 3 mai 2017 09:13:51
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.53 kb
#include <cstdio>
using namespace std;
int d[20][250005];
int main() {
  freopen("stramosi.in","r",stdin);
  freopen("stramosi.out","w",stdout);
  int n, m, i, j, p, q;
  scanf("%d%d", &n, &m);
  for(i = 1; i <= n; i ++)
    scanf("%d", &d[0][i]);
  for(j = 1; j <= 17; j ++)
    for(i = 1; i <= n; i ++)
      d[j][i] = d[j - 1][d[j - 1][i]];
  for (i = 1; i <= m; i ++) {
    scanf("%d%d", &q, &p);
    for (j = 17; j >= 0; j --)
      if (p & (1 << j))
        q = d[j][q];
    printf("%d\n", q);
  }
  return 0;
}