Cod sursa(job #245282)

Utilizator eu93Marian S eu93 Data 17 ianuarie 2009 15:46:18
Problema Factorial Scor 40
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.28 kb
Raporteaza aceasta sursa 
#include <fstream.h>
int main ()
{long p,k=0,i,z;
ifstream f("fact.in");
ofstream g ("fact.out");
f>>p;i=0;
if (p<5) g<<"1";
else { while (k!=p) { i+=5;
          z=i;
	  while (z%5==0) {k++;z=z/5; } }}
if (k!=p) g<< "-1";
 
g<< i;
f.close ();
g.close ();
return 0;
}