Cod sursa(job #1976316)

Utilizator MiricaMateiMirica Matei MiricaMatei Data 3 mai 2017 09:07:58
Problema Stramosi Scor 90
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.55 kb
#include <cstdio>
using namespace std;
int d[250005][20];
int main(){
  freopen("stramosi.in", "r", stdin);
  freopen("stramosi.out", "w", stdout);
  int n, m;
  scanf("%d%d", &n, &m);
  for (int i = 1; i <= n; ++i)
    scanf("%d", &d[i][0]);
  for (int j = 1; j <= 17; ++j)
    for (int i = 1; i <= n; ++i)
      d[i][j] = d[d[i][j - 1]][j - 1];
  for (int i = 1; i <= m; ++i){
    int q, p;
    scanf("%d%d", &q, &p);
    for (int j = 0; j <= 17; ++j)
      if (p & (1 << j))
        q = d[q][j];
    printf("%d\n", q);
  }
  return 0;
}