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Cod sursa(job #673183)
#include<fstream>
using namespace std;
int a[20][250002];
int main ()
{
int i,n,m,j,p,q,rasp,max,b[300002][2];
ifstream fi("stramosi.in");
ofstream fo("stramosi.out");
fi>>n>>m;
for (i=1; i<=n; i++)
fi>>a[0][i];
for(i=0;i<m;i++)
fi>>b[i][0]>>b[i][1];
for (i=1; i<=18; i++)
for (j=1; j<=n; j++)
a[i][j]=a[i-1][a[i-1][j]];
for (i=0; i<m; i++)
{
q=b[i][0]; p=b[i][1];
rasp=q; max=18;
for (j=max; j>=0; j--)
if (p & (1<<j))
rasp=a[j][rasp];
fo<<rasp<<"\n";
}
return 0;
}