Cod sursa(job #2745389)

Utilizator RobertAcAcatrinei Robert-Marian RobertAc Data 26 aprilie 2021 14:44:04
Problema Fractii Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>

using namespace std;
ifstream in("fractii.in");
ofstream out("fractii.out");
int main(){
    int n,rez=0;
    in>>n;
    for(int i=n;i>0;i--){
        for(int j=2;j<i;j++){
            if(!(i%j==0))rez+=2;
        }
    }
    rez+=n*2-1;
    out<<rez;
}