Cod sursa(job #2702105)

Utilizator alex1033Alex Putineanu alex1033 Data 2 februarie 2021 21:48:34
Problema Al k-lea termen Fibonacci Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.3 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;

ifstream in("kfib.in");
ofstream out("kfib.out");
int main()
{
long long f1,f2,f,k,ct;
in>>k;
f1=0;
f2=1;
if(k==0) out<<0;
if(k==1) out<<1;
else{
ct=2;
while(ct<=k){
f=f1+f2;
f1=f2;
f2=f;
++ct;
}
out<<f;
}
    return 0;
}