Cod sursa(job #584127)

Utilizator informatician28Andrei Dinu informatician28 Data 24 aprilie 2011 10:42:18
Problema Factorial Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include<fstream> 
using namespace std; 
ifstream f("fact.in");
ofstream g("fact.out");
int main() 
{int i,fm=0,m,n,p;
f>>p;
if(p==0) g<<1; else{
n=p*5; 
i=5; 
do
{m=i;
	while(m%5==0) 
{fm++; 
m/=5;}
i+=5;}while(i<=n && fm<p);
if(fm==p) g<<i-5;
else g<<-1; 
}
return 0;
}