Cod sursa(job #358000)

Utilizator crenguBacaoanu Crenguta crengu Data 21 octombrie 2009 17:25:02
Problema Factorial Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include<fstream.h>
#include<math.h>
int main()
{
	 int p,n,b,k,x;
	 ifstream f("fact.in");
	 ofstream g("fact.out");
	 f>>p;
	 k=0;
	 n=0;b=1;
	 while(k<p-1)
	 {
		 n+=5; k++;
		 x=pow(5,b);
		 if(k%x==0){k+=b-1;b++;}
	 }
	 g<<n;
	 f.close();
	 g.close();
	 return 0;
}