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Cod sursa(job #584996)
#include<fstream>
using namespace std;
int n, m;
int s[33][250003];
int main()
{
int i, j;
fstream in,out;
in.open("stramosi.in",ios::in);
out.open("stramosi.out",ios::out);
in>>n>>m;
for(i=1;i<=n;i++)
in>>s[0][i];
for(i=1;(1<<i)<n;i++)
for(j=1;j<=n;j++)
s[i][j]=s[i-1][s[i-1][j]];
int x,y,k;
for(j=1;j<=m;j++)
{
in>>x>>y;
i = 0;
while(y)
{
if(y&1)
x=s[i][x];
y/=2;
i++;
}
out<<x<<'\n';
}
return 0;
}