Cod sursa(job #584129)
Utilizator | Data | 24 aprilie 2011 10:44:49 | |
---|---|---|---|
Problema | Factorial | Scor | 60 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.27 kb |
#include<fstream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int main()
{int i,fm=0,m,p;
f>>p;
if(p==0) g<<1; else{
i=5;
do
{m=i;
while(m%5==0)
{fm++;
m/=5;}
i+=5;}while(fm<p);
if(fm==p) g<<i-5;
else g<<-1;
}
return 0;
}