Cod sursa(job #172312)

Utilizator ghiutaalexGhiuta Alex ghiutaalex Data 6 aprilie 2008 08:55:59
Problema Koba Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<stdio.h>
long long n,a,b,c,i,s,x;
int main()
{FILE*f=fopen("koba.in","r");
 FILE*g=fopen("koba.out","w");
 fscanf(f,"%lld %lld %lld %lld",&n,&a,&b,&c);
 s=a%10+b%10+c%10;
 for(i=4;i<=n;i++)
	{x=(c%10+((b%10)*(a%10))%10)%10;
	 s+=x;
	 a=b%10;
         b=c%10;
         c=x;}
 fprintf(g,"%lld",s);
 fcloseall();
 return 0;
}