Cod sursa(job #405268)
| Utilizator |  Barcan Virgil-Gheorghe barcanvirgil |
Data | 27 februarie 2010 20:29:52 |
|---|---|---|---|
| Problema | Cifra | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.26 kb |
#include<fstream.h>
int n,s,p,c,r,i,j;
ifstream f("cifra.in");
ofstream g("cifra.out");
int main(){
f>>n;
s=0;
for(i=1; i<=n; i++){
c=i%10;
p=1;
r=i%4;
if(r==0) r=4;
for(j=1; j<=r; j++) p=(p*c)%10;
s=(s+p)%10;
}
g<<s<<'\n';
return 0;
}