Cod sursa(job #174218)

Utilizator MciprianMMciprianM MciprianM Data 8 aprilie 2008 17:29:11
Problema Koba Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
int a, b, c, d, n, s;
int main(){
  int i;
  ifstream f("koba.in");
  f>>n>>a>>b>>c;
  f.close();
  ++n;
  a=a%10;	b=b%10;		c=c%10;
  s=a+b+c;
  for(i=4;i<n;++i){
    d=c+a*b;
    d%=10;
    s+=d;
    a=b;	b=c;	c=d;
  }
  ofstream g("koba.out");
  g<<s<<'\n';
  g.close();
  return 0;
}