Cod sursa(job #1074681)

Utilizator mihaixdmihai iacov mihaixd Data 7 ianuarie 2014 21:02:15
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
int ndiv(int a)
{
	int i,k=1;
	for(i=2;i<=a/2;i++)
		if(a%i!=0)k++;
	k=k+a-a/2;
	return k;
}
int main()
{
	int n,i,s=1;  //     1/1 -> prima fractie
	ifstream f("fractii.in");
	ofstream g("fractii.out");
	f>>n;
	for(i=2;i<=n;i++)
		s=s+2*ndiv(i);
	g<<s;
	return 0;
}