Cod sursa(job #898353)

Utilizator Deme147Demenescu Andrei Deme147 Data 28 februarie 2013 10:04:30
Problema Factorial Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
int main()
{
    long P,k,N,t;
ifstream f("fact.in");
ofstream g("fact.out");

    f>>P;
k=0;N=5;
while(k<P)
{
t=N;
while(t%5==0)
{
    t=t/5;
    k+=1;
}
N+=5;

}
if(P==0) g<<"1";
else
if(k==P) g<<N-5;
else g<<"-1";

}