Cod sursa(job #314985)
Utilizator | Data | 13 mai 2009 22:23:22 | |
---|---|---|---|
Problema | Nunta | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.27 kb |
#include<fstream>
using namespace std;
ifstream f1 ("nunta.in");
ofstream f2 ("nunta.out");
long long fib(long long k)
{
if (k==1) return 1;
else if (k==2) return 2;
else return fib(k-1)+fib(k-2);
}
int main()
{
long long n;
f1>>n;
f2<<fib(n+1);
return 0;
}