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Cod sursa(job #744668)
#include<stdio.h>
//#include<fstream>
//using namespace std;
int d[18][250010];
int main()
{
//ifstream in("stramosi.in");
freopen("stramosi.in", "r", stdin);
freopen("stramosi.out", "w", stdout);
//ofstream out("stramosi.out");
int i, n, q, nod, pas, j, last;
//in >> n >> q;
scanf("%d %d", &n, &q);
for(i = 1; i <= n; ++i)
//in >> d[0][i];
scanf("%d ", &d[0][i]);
for(i = 1; (1 << i) <= n; ++i)
for(j = 1; j <= n; ++j){
last = d[i - 1][j];
d[i][j] = d[i - 1][last];
}
while(q--){
//in >> nod >> pas;
scanf("%d %d", &nod, &pas);
for(i = 0; (1 << i) <= pas && nod; ++i)
if(pas & (1 << i))
nod = d[i][nod];
//out << nod << "\n";
printf("%d\n", nod);
}
return 0;
}