Cod sursa(job #1308445)

Utilizator AnesthesicChereches Sergiu Alexandru Anesthesic Data 4 ianuarie 2015 02:34:15
Problema Ciurul lui Eratosthenes Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.37 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
#define nmax 2000005

ifstream fin ("ciur.in");
ofstream fout ("ciur.out");

int v[nmax];
int i, n, j;

int main(){
    fin >> n;
    for(i=2; i<=n; i++)
        if(v[i]==0)
            for(j=i*2; j<=n; j+=i)  v[j]=1;

    for(i=2; i<=n; i++)
        if (v[i]!=1)  fout << i << " ";

    return 0;
}