Cod sursa(job #1418547)

Utilizator BogdanVMVilculescu Mihai Bogdan BogdanVM Data 13 aprilie 2015 14:05:52
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
long long P;
int main()
{
    int k=0;
    f>>P;
    f.close();
    if (P%10 == 5) g<<-1<<'\n';
    else if (P==0) g<<1<<'\n';
      else
        {for (int i = 1;i <= P; i++)
           if (i%10!=5)
             k+=5;
         g<<k<<'\n';
        }
}