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Cod sursa(job #726594)
#include<stdio.h>
#include<vector>
#define infile "stramosi.in"
#define outfile "stramosi.out"
#define nmax 250002
using namespace std;
int a[nmax];
int n,m;
vector<int> g[nmax];
void rsolve()
{
int x,p;
scanf("%d %d",&n,&m);
for(int i=1;i<=n;i++)
scanf("%d ",&a[i]);
for(int i=1;i<=n;++i)
{
x=i;
while(x)
{
x=a[x];
g[i].push_back(x);
}
}
for(int i=1;i<=m;i++)
{
scanf("%d %d",&x,&p);
printf("%d\n",g[x][p-1]);
}
}
int main()
{
freopen(infile,"r",stdin);
freopen(outfile,"w",stdout);
rsolve();
fclose(stdin);
fclose(stdout);
return 0;
}