Cod sursa(job #305800)

Utilizator funlovinggirlCernea Teodora funlovinggirl Data 18 aprilie 2009 17:01:37
Problema Ciurul lui Eratosthenes Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.23 kb
Raporteaza aceasta sursa 
#include<fstream.h>
long int i,n,d,j,k=0;
int main ()
{
ifstream in("ciur.in");
ofstream out("ciur.out");
in>>n;
for (i=2;i<=n;i++)
{ d=1;
  for (j=2;j<=i/2;j++)
  { if(i%j==0) d=0; }
  if (d==1)  k++; }
out<<k;
return 0;
}