Cod sursa(job #284850)
Utilizator | Data | 21 martie 2009 23:58:39 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | fpc | Status | done |
Runda | Arhiva de probleme | Marime | 0.34 kb |
var f,g:text;
i,j,n,q:longint;
r:longint;
begin
assign(f,'fractii.in');
assign(g,'fractii.out');
reset(f);
rewrite(g);
readln(f,n);
close(f);
for i:=2 to n do begin
for j:=2 to n do
if (i mod j <> 0) and (j mod i <> 0 ) then
if i < j then r:=r+2;
end;
r:=r+n*2;
writeln(g,r-1);
close(g);
end.