Cod sursa(job #1564934)

Utilizator krityxAdrian Buzea krityx Data 10 ianuarie 2016 01:29:59
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;

int main()
{
	int N, i, j, sol = 0, lasti;
	ifstream fin("fractii.in");
	fin >> N;
	fin.close();
	for (i = 2; i <= N; i++)
	{
		lasti = 1;
		for (j = i; j <= N; j += i)
		{
			sol += j - lasti;
			lasti = j + 1;
		}
	}
	ofstream fout("fractii.out");
	fout << sol + N;
	fout.close();
	return 0;
}