Cod sursa(job #934898)

Utilizator mvcl3Marian Iacob mvcl3 Data 31 martie 2013 20:26:23
Problema Nunta Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
#define LL long long
using namespace std;

ifstream f("nunta.in"); ofstream g("nunta.out");

int n;
LL a = 1, b = 2, c;

inline LL solve() {
    for(int i = 3 ; i <= n; ++i) c = a + b, a = b, b = c;

    return c;
}

int main() {
    f >> n;

    g << solve() << '\n';

    g.close();
    return 0;
}