Cod sursa(job #711396)

Utilizator venom4u31Manea Constantin venom4u31 Data 12 martie 2012 01:05:19
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <stdio.h>
#include <stdlib.h>
#include <fstream.h>
using namespace std;

int main()
{
	ifstream f("fractii.in");
	ofstream g("fractii.out");
    unsigned long long int n,i,s;
    f>>n;
    s=n*n;
    for(i=2;i<=n/2;i++)
        s-=2*n/i;
    g<<s-n-2;
    return 0;
}