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Cod sursa(job #215696)
#include <stdio.h>
#define N 250250
int n,m,v[N],q,p,a[N][20];
void scr();
int calcul(int p,int q)
{
scr();
for(int j=0 ; p ; ++j,p/=2)
if(p%2)
q=a[q][j];
return q;
}
void scr()
{
for(int j=1;j<20;j++)
{
for(int i=1;i<=n;i++)
{
a[i][j]=a[ a[i][j-1] ][j-1];
}
}
}
void citire()
{
int i;
scanf("%d%d",&n,&m);
for(i=1;i<=n;i++)
{
scanf("%d",&a[i][0]);
}
for(i=1;i<=m;i++)
{
scanf("%d%d",&q,&p);
/*
for(int j=1;j<=p;j++)
{
q=v[q];
}
*/
printf("%d\n",calcul(p,q));
}
}
int main()
{
int i,j;
freopen("stramosi.in","r",stdin);
freopen("stramosi.out","w",stdout);
citire();
return 0;
}