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Cod sursa(job #557540)
#include<fstream>
#include<vector>
using namespace std;
ifstream fin ("stramosi.in");
ofstream fout ("stramosi.out");
vector<vector<int> > a;
int n,x,y,m;
void citire()
{
fin>>n>>m;
a.resize(n+1);
a[0].resize(n+1);
for(int i=1;i<=n;i++)
{
a[i].resize(n+1);
fin>>a[0][i];
}
}
void din()
{
int ok=1,niv=0;
while(ok==1)
{
ok=0;
niv++;
for(int i=1;i<=n;i++)
{
a[niv][i]=a[niv-1][a[niv-1][i]];
if(a[niv-1][a[niv-1][i]]!=0)
ok=1;
}
}
}
void rez()
{
for(int i=1;i<=m;i++)
{
fin>>x>>y;
int niv=1;
while(y!=0)
{
if(y%2==1)
x=a[niv-1][x];
y=y/2;
niv++;
}
fout<<x<<'\n';
}
}
int main ()
{
citire();
din();
rez();
return 0;
}