Cod sursa(job #2169134)
Utilizator | Data | 14 martie 2018 13:35:46 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.7 kb |
#include <iostream>
#include <fstream>
using namespace std;
int main()
{
ifstream f("fractii.in");
ofstream g("fractii.out");
int n,i,j,ct=0,k,div;f>>n;bool priele;
for(i=2;i<=n;i++)
{
div=1;
for(j=2;j<=i;j++)
{
priele=true;
for(k=2;k<=j;k++)
if(i%k==0 && j%k==0)
{
priele=false;
break;
}
if(priele==true)
{
div++;if(j<=n%i)ct++;
}
}
ct=ct+(n/i)*div;
if(n%i>=1)ct++;
//cout<<i<<". "<<ct<<"\n";
}
g<<ct+n;
f.close ();
g.close ();
}