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Cod sursa(job #992046)
#include <cstdio>
#define dim 250010
using namespace std;
int n, m, i, j, p, q, k, d[20][dim];
int main()
{
freopen("stramosi.in", "r", stdin);
freopen("stramosi.out", "w", stdout);
scanf("%d %d", &n, &m);
for(i=1; i<=n; i++)
scanf("%d", &d[0][i]);
for(i=1; i<=20; ++i)
for(j=1; j<=n; ++j)
d[i][j]=d[i-1][d[i-1][j]];
for(i=1; i<=m; ++i)
{
scanf("%d %d", &q, &p);
k=0;
while(p)
{
while( 1<<k <= p )
++k;
--k;
p-=1<<k;
q=d[k][q];
}
printf("%d\n", q);
}
return 0;
}