Cod sursa(job #137264)
Utilizator | Sergiu-Ioan Ungur ssergiuss | Data | 17 februarie 2008 10:42:32 |
---|---|---|---|
Problema | Koba | Scor | 0 |
Compilator | cpp | Status | done |
Runda | preONI 2008, Runda 4, Clasele 5-8 | Marime | 0.53 kb |
#include<stdio.h>
#define INPUT "koba.in"
#define OUTPUT "koba.out"
#define DIM 100000001
void Rezolvare();
long long unsigned n,suma,produs,S,a[DIM];
int main()
{
freopen(INPUT,"r",stdin);
freopen(OUTPUT,"w",stdout);
Rezolvare();
return 0;
}
void Rezolvare()
{
int i;
scanf("%llu%llu%llu%llu",&n,&a[1],&a[2],&a[3]);
S=(a[1]%10)+(a[2]%10)+(a[3]%10);
for(i=3; i<=n; ++i)
{
a[i]=a[i-1]+a[i-2]*a[i-3];
S+=(a[i]%10);
}
printf("%llu",S);
}