Cod sursa(job #1728784)

Utilizator narcios_neculaNarcis Necula narcios_necula Data 13 iulie 2016 17:47:40
Problema Nunta Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.28 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream f("nunta.in");
ofstream g("nunta.out");
long long n,a,c;
int main()
{
    f >> n;
    a = 1;
    c = 2;
    while(n > 2)
    {
        --n;
        c = a + c;
        a = c - a;
    }
    g << c << '\n';
    return 0;
}