Cod sursa(job #239500)
Utilizator | Data | 4 ianuarie 2009 21:45:20 | |
---|---|---|---|
Problema | Koba | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.49 kb |
#include<fstream>
using namespace std;
ifstream fin ("koba.in");
ofstream fout ("koba.out");
int main ()
{
int n,i;
fin>>n;
long long unsigned s;
long long unsigned a[n*n];
fin>>a[1]>>a[2]>>a[3];
s=a[1]%10+a[2]%10+a[3]%10;
for(i=3;i<n;i++)
{
a[i+1]=a[i]+a[i-1]*a[i-2];
a[i+1]%=10;
s+=a[i+1];
}//s=0;
//for(i=1;i<=n;i++)
//s+=(a[i]%10);
fout<<s;
return 0;
}