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Cod sursa(job #966454)
#include<cstdio>
#include<cmath>
using namespace std;
int m,n,i,j,k,x,y,v[20][250001];
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",&v[0][i]);
k=log2(n);
for (i=1;i<=k;i++)
for (j=1;j<=n;j++)
v[i][j]=v[i-1][v[i-1][j]];
for (i=1;i<=m;i++)
{
scanf("%d %d",&x,&y);
k=0;
while (y>0)
{
if (y%2!=0) x=v[k][x];
k++;y/=2;
}
printf("%d\n",x);
}
return 0;
}