Cod sursa(job #575842)
#include <cstdio>
#define Nmax 250001
using namespace std;
int n, m;
int q, p;
int lg[Nmax];
int a[19][Nmax];
void proc();
int main() {
freopen("stramosi.in", "r", stdin);
freopen("stramosi.out", "w", stdout);
scanf("%d %d", &n, &m);
lg[1] = 0;
for (int i = 2; i <= n; i++)
lg[i] = lg[i/2] + 1;
for (int i = 1; i <= n; i++)
scanf("%d ", &a[0][i]);
proc();
for (int i = 1; i <= m; i++) {
scanf("%d %d", &q, &p);
while (p) {
q = a[lg[p]][q];
p = p - (1 << lg[p]);
}
printf("%d\n", q);
}
return 0;
}
void proc() {
for (int i = 1; (1 << i) <= n; i++)
for (int j = 1; j <= n; j++)
a[i][j] = a[i-1][a[i-1][j]];
}