Cod sursa(job #247291)

Utilizator fifimusatMusat Florin fifimusat Data 22 ianuarie 2009 19:05:20
Problema Factorial Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.28 kb
Raporteaza aceasta sursa 
#include<fstream.h>
int  main()
{double n,i=0,z,p,q,s;
ifstream fin("fact.in");
fin>>n;
s=n;
ofstream fout("fact.out");
if(n==0) fout<<1;
if(n==1) fout<<5;
while(n>=5)
   {n=n/5;
    i++;}
if(n==1)
   fout<<"-1";
else
   {z=i-1;
   q=s-z;
   fout<<q*5;}
   return 0;}