Cod sursa(job #22461)
Utilizator | Sebestyen Ioana-Maria dark_me | Data | 26 februarie 2007 17:15:55 |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | fpc | Status | done |
Runda | Arhiva de probleme | Marime | 0.48 kb |
type subd=1..1000000;
var i,j:subd;
f,g:text;
n,k:subd;
function cmmdc(i,j:subd):subd;
var r:word;
begin
r:=i;
while j<>0 do begin
r:=i mod j;
i:=j;
j:=r; end;
cmmdc:=i;
end;
function nr(n,k:subd):subd;
begin
for i:=2 to n do
for j:=2 to n do
if cmmdc(i,j)<>1 then k:=k-1;
nr:=k;
end;
begin
assign(f,'fractii.in');
assign(g,'fractii.out');
reset(f);
rewrite(g);
read(f,n);
k:=sqr(n);
write(g,nr(n,k));
close(f);
close(g);
end.