Cod sursa(job #6180)
| Utilizator |  HighScore skyel |
Data | 17 ianuarie 2007 22:47:24 |
|---|---|---|---|
| Problema | Factorial | Scor | 85 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.29 kb |
#include<fstream.h>
#define input "fact.in"
#define output "fact.out"
int main()
{
long h,x,n;
ifstream fin(input);
ofstream fout(output);
fin>>n;
x=n;
h=1;
while(h*5+1<=n)
h=(h*5)+1;
while(h!=1)
{
x-=(x/h);
h--;
h=h/5;
}
fout<<x*5;
return 0;
}