Cod sursa(job #134518)
Utilizator | Data | 11 februarie 2008 20:21:42 | |
---|---|---|---|
Problema | Factorial | Scor | 5 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.35 kb |
#include<iostream>
#include<fstream>
using namespace std;
main()
{ int p, n, i, aux;
ifstream f("fact.in");
f>>p;
aux=p;
for(i=1;i<=(p*5);i++)
{ if(i%25==0) aux--;
if(i%125==0) aux=aux-2;
if(i%625==0) aux=aux-3;
}
f.close();
ofstream g("fact.out");
if(aux==0) g<<-1;
else g<<aux*5;
g.close();
return 0;
}