Pagini recente » Cod sursa (job #1264350) | Cod sursa (job #890296) | Cod sursa (job #1280600) | Cod sursa (job #2320722) | Cod sursa (job #2977224)
#include <bits/stdc++.h>
#include <fstream>
#define cin fin
#define cout fout
using namespace std;
ifstream cin("stramosi.in");
ofstream cout("stramosi.out");
int n,m,i,tata[250008][28],a,b,j;
int main()
{
cin>>n>>m;
for(i=1;i<=n;i++)
{
cin>>tata[i][0];
}
for(j=1;(1<<j)<=n;j++)
{
for(i=(1<<j);i<=n;i++)
{
tata[i][j]=tata[tata[i][j-1]][j-1];
}
}
for(i=1;i<=m;i++)
{
cin>>a>>b;
while(b)
{
a=tata[a][(int)(log2((b&-b)))];
b=b-(b&-b);
}
cout<<a<<'\n';
}
return 0;
}