Cod sursa(job #172314)

Utilizator ghiutaalexGhiuta Alex ghiutaalex Data 6 aprilie 2008 09:00:34
Problema Koba Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<stdio.h>
long n,a,b,c,i,s,x,t,u,v;
int main()
{FILE*f=fopen("koba.in","r");
 FILE*g=fopen("koba.out","w");
 fscanf(f,"%ld %ld %ld %ld",&n,&a,&b,&c);
 t=a%10;
 u=b%10;
 v=c%10;
 s=t+u+v;
 for(i=4;i<=n;i++)
	{x=(v+(u*t)%10)%10;
	 s+=x;
	 t=u;
         u=v;
         v=x;}
 fprintf(g,"%ld",s);
 fcloseall();
 return 0;
}