Cod sursa(job #634367)
Utilizator | Data | 16 noiembrie 2011 02:22:55 | |
---|---|---|---|
Problema | Al k-lea termen Fibonacci | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.29 kb |
#include<fstream>
using namespace std;
ifstream in("kfib.in");
ofstream out("kfib.out");
int main()
{long int k, f0=0, f1=1, f2;
in>>k;
if(!k) out<<f0;
else
if(k==1) out<<f1;
else
{
for(int i=2;i<=k;i++)
{
f2=f0+f1;
f0=f1;
f1=f2;
}
out<<f2;
}
}