Cod sursa(job #898265)
Utilizator | Data | 28 februarie 2013 09:39:46 | |
---|---|---|---|
Problema | Factorial | Scor | 50 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include <fstream>
using namespace std;
int main()
{
int P,N,t,k,i,x;
ifstream f("fact.in");
ofstream g("fact.out");
f>>P;
k=0;x=5;
while(k<P)
{
t=x;
while(t%5==0)
{
t=t/5;
k=k+1;
}
x=x+5;
}
if(P==0) g<<"1";
else
if(k==P) g<<x-5;
else g<<"-1";
g<<endl;
f.close();
g.close();
}