Pagini recente » Cod sursa (job #1773321) | Cod sursa (job #459845) | Cod sursa (job #1703863) | Cod sursa (job #1691680) | Cod sursa (job #1708055)
#include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
int rmq[20][250100];
int n, m, i, j;
int main()
{
freopen("stramosi.in","r",stdin);
freopen("stramosi.out","w",stdout);
cin>>n>>m;
for(i=1; i<=n; ++i)
{
cin>>rmq[0][i];
}
int k=log2(n);
for(i=1; i<=k; ++i)
{
for(j=1; j<=n; ++j)
rmq[i][j]=rmq[i-1][rmq[i-1][j]];
}
int p,q;
for(i=1; i<=m; ++i)
{
cin>>p>>q;
while(q)
{
k=log2(q);
p=rmq[k][p];
q-=(1<<k);
}
cout<<p<<'\n';
}
}