Cod sursa(job #1317834)

Utilizator GeorgianaMMirlogeanu Georgiana GeorgianaM Data 15 ianuarie 2015 11:28:45
Problema Ciurul lui Eratosthenes Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.32 kb
#include <iostream>
#include<fstream>
#define NMAX 2000005
using namespace std;
ifstream f("ciur.in");
ofstream g("ciur.out");

int main()
{
    {char ciur[NMAX],n,i,nr=0;
f>>n;
for (i=2;i<n;i++)
{ if (ciur[i]==0)
{ nr++;
   for(int k=i;k<=n;k=k+i)
   ciur[k]=1;
      }
    }
}
g<<nr;
    return 0;
}