Mai intai trebuie sa te autentifici.
Cod sursa(job #532845)
| Utilizator | Data | 12 februarie 2011 16:42:24 | |
|---|---|---|---|
| Problema | Factorial | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.53 kb |
#include<fstream>
#include<iostream>
#include<conio.h>
using namespace std;
int zero(int n)
{
if(n<0) return -1;
if(n==0) return 1;
int i=5*n;
int j=25;
int k=0;
while(j*(k+1)<i)
{
k++;i-=5;cout<<i<<" "<<k<<" ";
if(k%10==5)
{
int t=0;
while(k>=5)
{
k/=5;
t++;
}
i=i-5*t;
}
if(i==j*(k+1)) return -1;
}
//if(k<5 && j==5) j=10;
return i;
}
int main()
{
int n;
ifstream f("fact.in");
ofstream g("fact.out");
f>>n;
g<<zero(n);
getch();
return 0;
}