Cod sursa(job #2228573)

Utilizator inquisitorAnders inquisitor Data 4 august 2018 12:03:18
Problema Ciurul lui Eratosthenes Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.21 kb
Raporteaza aceasta sursa 
#import<fstream>

int n,i=1,j,r; char p['썐'];

main()
{
    for(std::ifstream("ciur.in")>>n;n/++i;)

        if(!p[i]) for(++r, j = i; (j+=i) <= n;) p[j] = 1;

    std::ofstream("ciur.out")<<r;
}