Cod sursa(job #472934)
Utilizator | Data | 27 iulie 2010 09:12:37 | |
---|---|---|---|
Problema | Factorial | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<fstream.h>
int p;
int main()
{
ifstream f("fact.in");
ofstream g("fact.out");
f>>p;
long long cont=0;
long long i=1,fact=1;
while( cont<p && i<30000 )
{
if(fact%10==0) {cont++;fact*=i;}
else fact*=i;
i++;
}
if(cont==p) g<<i;
else g<<-1;
f.close();
g.close();
return 0;
}