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Cod sursa(job #304959)
#include<fstream.h>
int main()
{int (*b)[250005]=new int[22][250005],*a=new int[250005],k;
long i,j,m,n,p,q;
ofstream g("stramosi.out");
ifstream f("stramosi.in");
f>>n>>m;
for(i=1;i<=n;i++)
f>>a[i];
for(i=1;i<=n;i++)
b[1][i]=a[i];
k=2;
while((2<<k)<=n){
for(i=1;i<=n;++i) b[k][i]=a[b[k-1][i-1]];
++k;
}
for(i=1;i<=m;i++)
{f>>p>>q;
g<<b[q][p]; }
f.close();
g.close();
return 0;
}