Cod sursa(job #356038)
Utilizator | Andrei matzipan | Data | 13 octombrie 2009 12:30:15 |
---|---|---|---|
Problema | Ciurul lui Eratosthenes | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.25 kb |
#include <fstream>
using namespace std;
ifstream in("ciur.in");
ofstream out("ciur.out");
long era() {
long nr;
nr=N;
for(x=2; x*i<N; x++)
nr--;
if(2*i>N) nr=0;
return nr;
}
int main() {
in>>N;
nr=era();
out<<nr;
return 0;
}