Cod sursa(job #188682)

Utilizator antoanelaAntoanela Siminiuc antoanela Data 9 mai 2008 16:58:13
Problema Dame Scor 5
Compilator fpc Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
var f,g:text;
    n,i:longint;
begin
assign(f,'dame.in');
assign(g,'dame.out');
reset(f);
rewrite(g);
read(f,n);
i:=1;
while (i<=n)do
  begin
    writeln(g,i,' ',i div 2+1);
    inc(i,2);
  end;
i:=2;
while (i<=n)do
  begin
    writeln(g,i,' ',(n-1) div 2+1+(i div 2));
    inc(i,2);
  end;
close(f);
close(g);
end.