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Cod sursa(job #766952)
#include<fstream>
#define NN 200001
using namespace std;
ofstream out("stramosi.out");
int t[NN],n,m;
void read();
int main()
{
read();
return 0;
}
void read()
{
ifstream in("stramosi.in");
in>>n>>m;
int x;
for(int i=1;i<=n;i++)
{
in>>x;
t[i]=x;
}
int q,p;
for(int i=1;i<=m;i++)
{
in>>q>>p;
int x,y;
x=q;
y=p;
while(y)
{
x=t[x];
y--;
if(x==0)
{
break;
out<<-1<<'\n';
}
}
out<<x<<'\n';
}
}