Cod sursa(job #1846465)

Utilizator alindima99Alin Dima alindima99 Data 12 ianuarie 2017 21:17:04
Problema Al k-lea termen Fibonacci Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.26 kb
Raporteaza aceasta sursa 
#include <fstream>
#include <math.h>

using namespace std;

ifstream cin("kfib.in");
ofstream cout("kfib.out");

int main()
{
    long long k,x;
    cin>>k;

    x=(1/sqrt(5))*(pow((1+sqrt(5))/2,k)-pow((1-sqrt(5))/2,k));

    cout<<x;

    return 0;
}