Pagini recente » Cod sursa (job #3142751) | Cod sursa (job #3270866) | Cod sursa (job #2513128) | Cod sursa (job #669498) | Cod sursa (job #2707344)
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
int n,m,dp[21][250005];
int nod,val,a,i,j;
int query()
{
int p=nod;
for(int i=0;i<=18&&val>0;i++)
if((val>>i)&1)
{
p=dp[i][p];
val-=(1LL<<i);
}
return p;
}
int main()
{
fin>>n>>m;
for(i=1;i<=n;i++)
{
fin>>a;
dp[0][i]=a;
}
for(i=1;i<=18;i++)
for(j=1;j<=n;j++)
dp[i][j]=dp[i-1][dp[i-1][j]];
while(m--)
{
fin>>nod>>val;
fout<<query()<<'\n';
}
return 0;
}