Cod sursa(job #2444057)

Utilizator luliusBratu Iulian lulius Data 30 iulie 2019 10:30:06
Problema Ciurul lui Eratosthenes Scor 20
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.33 kb
#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    int N,r=0;
    ifstream A("ciur.in");
    ofstream B("ciur.out");
    A>>N;
    for(int i=2;i<=N;i++)
        if(i%2!=0 && i%3!=0 && i%5!=0)
            ++r;
    if(N>5)
        r+=3;
    B<<r;
    A.close();
    B.close();
    return 0;
}