Cod sursa(job #137855)
Utilizator | Data | 17 februarie 2008 15:33:24 | |
---|---|---|---|
Problema | Koba | Scor | 30 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.35 kb |
#include <stdio.h>
int main(){
int s=0,i,t1,t2,t3,t4,n;
FILE*f=fopen("koba.in","r");
FILE*g=fopen("koba.out","w");
fscanf(f,"%d%d%d%d",&n,&t1,&t2,&t3);
t1%=10;
t2%=10;
t3%=10;
s=(t1%10)+(t2%10)+(t3%10);
for(i=4;i<=n;i++){
t4=(t3+(t2*t1))%10;
s+=t4;
t1=t2%10;
t2=t3%10;
t3=t4%10;
}
fprintf(g,"%d",s);
return 0;
}