Cod sursa(job #1047471)

Utilizator lucaignatescuIgnatescu Luca lucaignatescu Data 4 decembrie 2013 16:34:07
Problema Ciurul lui Eratosthenes Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.3 kb
Raporteaza aceasta sursa 
#include <fstream>
#include <cmath>
using namespace std;
ifstream in ("ciur.in");
ofstream out ("ciur.out");
int main()
{
    int v[100]={0},n,i,j,gogu=0;
    in>>n;
    for(i=2;i<=n;i++)
    if(v[i]==0)
        {for(j=i+i;j<=n;j=j+i)
    v[j]=1;
    gogu++;}
    out<<gogu;
    return 0;

}