Cod sursa(job #356691)
Utilizator | Data | 15 octombrie 2009 23:03:18 | |
---|---|---|---|
Problema | Nunta | Scor | 70 |
Compilator | cpp | Status | done |
Runda | CNRV #2 | Marime | 0.34 kb |
#include <fstream>
#include <iostream>
using namespace std;
int main () {
long long n,a,b,i,c;
ifstream f("nunta.in");
ofstream g("nunta.out");
f>>n;
c=0;
a=b=1;
for (i=3;i<=n+1;i++) {
c=a+b;
a=b;
b=c;
}
g<<b;
f.close();
g.close();
return 0;
}