Cod sursa(job #133518)

Utilizator ConsstantinTabacu Raul Consstantin Data 8 februarie 2008 20:25:51
Problema Factorial Scor 35
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.36 kb
Raporteaza aceasta sursa 
#include<fstream.h>
long long i,j,p,k,l,m,n;
int main(){
ifstream f("fact.in");
ofstream g("fact.out");
f>>p;
while((i+j)<p)
	{i+=5;
	m=i;
        k=0;
	while(m%5==0)
		{
		m/=5;j++;k++;
		}

	}
j-=k;
while(i+j>p)
	{i--;
	m=i;
	while(m%5==0)
		{m/=5;
		j--;}
	}
k=i+j;
if(k==p)
	g<<i*5;
else
	g<<-1;
f.close();
g.close();
return 0;
}