Cod sursa(job #577633)
| Utilizator |  Matei Vlad thelas |
Data | 10 aprilie 2011 14:30:50 |
|---|---|---|---|
| Problema | Factorial | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.36 kb |
#include<cstdio>
#include<fstream>
using namespace std;
int main()
{int n,p,i,r,a,k;
ifstream f("fact.in");
ofstream g("fact.out");
f>>p;
n=0;
do
{
k=0;
n++;
r=1;
for(i=1;i<=n;i++)
r=r*i;
for(i=p;i>=1;i--)
{
a=r%10;
if (a==0)
{
k++;
r=r/10;}
}
}
while(k!=p);
if (k==p)
g<<n;
else
g<<-1;
f.close();
g.close();}