Cod sursa(job #12312)
| Utilizator |  Alexandru Vlad p1ccolino |
Data | 3 februarie 2007 14:45:08 |
|---|---|---|---|
| Problema | Factorial | Scor | 25 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.31 kb |
#include<fstream.h>
ifstream f("fact.in");
ofstream g("fact.out");
int main()
{unsigned long n=1,p,nr=0,i;
f>>p;
if(p==0) g<<1<<"\n";
else for(n=5;n<=300000000&&nr<p;n++)
{i=n;while(i%5==0) {nr++;i=i/5;}
if(nr==p) {g<<n<<"\n";n=300000001; }
}
if(n==300000000)g<<-1<<"\n";
f.close();
g.close();
return 0;
}