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Cod sursa(job #353931)
#include<fstream.h>
#include<math.h>
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
long m,n,i,j,q,p,v[250001];
int main()
{
fin>>n>>m;
for(i=1;i<=n;i++)
fin>>v[i];
for(i=1;i<=m;i++)
{
fin>>q>>p;
if(q<p) fout<<0<<"\n";
if(q==p) fout<<v[q]<<"\n";
else fout<<v[q-p+1]<<"\n";
}
fin.close();
fout.close();
return 0;
}