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Cod sursa(job #487978)
#include <cstdio>
int n,m,p,q,a[18][1 << 18];
void citire()
{
freopen("stramosi.in","r",stdin);
freopen("stramosi.out","w",stdout);
scanf("%d%d",&n,&m);
for(int i=1;i<=n;++i)
scanf("%d",&a[0][i]);
}
void cream()
{
for(int i=1;i<=18;++i)
for(int j=1;j<=n;++j)
a[i][j]=a[i-1][a[i-1][j]];
}
int stramosi(int p,int q)
{
int i=0;
while(p!=0)
{
if(p&1)
q=a[i][q];
++i;
p>>=1;
}
return q;
}
void work()
{
for(int i=1;i<=m;++i)
{
scanf("%d%d",&q,&p);
printf("%d\n",stramosi(p,q));
}
}
int main()
{
citire();
cream();
work();
}