Cod sursa(job #2380739)

Utilizator SirbuEdiSirbu Eduard SirbuEdi Data 15 martie 2019 14:41:06
Problema Ciurul lui Eratosthenes Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>

using namespace std;
ifstream in ("ciur.in");
ofstream out ("ciur.out");
bool v[2000001];
int gigel,i,j,n;

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

    return 0;
}