Cod sursa(job #303662)
| Utilizator |  Claudiu cocoshila |
Data | 10 aprilie 2009 09:29:28 |
|---|---|---|---|
| Problema | Ciurul lui Eratosthenes | Scor | 0 |
| Compilator | fpc | Status | done |
| Runda | Arhiva educationala | Marime | 0.29 kb |
var n,i,cn,j,pr:longint;
f,g:text;
begin
assign(f,'ciur.in');
assign(g,'ciur.out');
reset(f); rewrite(g);
read(f,n);
pr:=1;
for i:=2 to n do begin
i:=i+1;
cn:=0;
for j:=2 to i div 2 do
if i mod j=0 then inc(cn);
if cn=0 then inc(pr);
end;
write(g,pr);
close(f);
close(g);
end.
