Cod sursa(job #1462074)

Utilizator bent_larsenSturzu Antonio-Gabriel bent_larsen Data 17 iulie 2015 00:30:00
Problema Nunta Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;

int main()
{
	long long f1 = 1, f2 = 2;
	
	ifstream in("nunta.in");
	ofstream out("nunta.out");
	
	int n;
	in >> n;
	
	for(int i = 3;i <= n;++i)
	{
		f2 = f1 + f2;
		f1 = f2 - f1;
	}
	
	out<<f2<<"\n";
	
	in.close();
	out.close();
}