Cod sursa(job #135267)
| Utilizator |  Nezbeda Harald free2infiltrate |
Data | 13 februarie 2008 13:46:47 |
|---|---|---|---|
| Problema | Dame | Scor | 50 |
| Compilator | fpc | Status | done |
| Runda | Arhiva de probleme | Marime | 0.3 kb |
program dame;
var N,x,i : integer;
f : text;
begin
assign(f,'dame.in');
reset(f);
read(f,n);
close(f);
assign(f,'dame.out');
rewrite(f);
writeln(f,n);
for i := 1 to n div 2 do
writeln(f,i,' ',2*i);
x := i;
for i := 1 to (n-n div 2) do
writeln(f,x+i,' ',2*i-1);
close(f);
end.
