Cod sursa(job #825418)
| Utilizator |  Macovei Bogdan BogdanMaco |
Data | 29 noiembrie 2012 08:32:06 |
|---|---|---|---|
| Problema | Cifra | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.26 kb |
#include<fstream>
#include<iostream>
using namespace std;
ifstream fin("cifra.in");
ofstream fout("cifra.out");
int main()
{
int n,S=0,k,nr;
fin>>n;
for(k=1;k<=n;k++)
S=S+(k%10*k)%10;
nr=S%10;
fout<<nr;
fin.close();
fout.close();
return 0;
}