Cod sursa(job #1322588)

Utilizator ADragos... ... ADragos Data 20 ianuarie 2015 10:10:54
Problema Ciurul lui Eratosthenes Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.25 kb
Raporteaza aceasta sursa 
#include <iostream>
using namespace std;
int i,j,a[100],n,k=0;
int main (void)
{
    cin>>n;
    for (i=2;i<=n;i++) a[i]=1;
    for (j=2;j<=n;j++) for (i=2;i*i<=n;i++) a[i*j]=0;
    for (i=1;i<=n;i++) if (a[i]==1) k++;
    cout<<k;
    return 0;
}