Cod sursa(job #663574)
Utilizator | Data | 18 ianuarie 2012 18:36:41 | |
---|---|---|---|
Problema | Factorial | Scor | 50 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.31 kb |
#include <fstream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int p,i,cif,X;
int main()
{
f>>p;
for(i=5;cif<p;i+=5)
{
X=i;
while (X%5==0) X/=5,cif++;
}
if (p==0) g<<1;
else
cif==p?g<<i-5:g<<-1;
f.close();
g.close();
return 0;
}