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Cod sursa(job #722977)
#include<fstream>
using namespace std;
ifstream f("stramosi.in");
ofstream g("stramosi.out");
long int a[18][260000],y[20];
long int p,q,i,j,k,m2;
long n,m;
int main()
{
f>>n>>m;
y[0]=1;
for(j=1;j<=17;j++)
y[j]=2*y[j-1];
a[0][0]=0;
for(j=1;j<=n;j++)
f>>a[0][j];
for(i=1;i<=17;i++)
for(j=1;j<=n;j++)
{
m2=a[i-1][j];
a[i][j]=a[i-1][m2];
}
for(i=1;i<=m;i++)
{
f>>q>>p;
k=1;
while(p)
{
if(p%2==1)
q=a[k-1][q];
k++;
p/=2;
}
g<<q<<"\n";
}
return 0;
}