Cod sursa(job #1553542)

Utilizator nicula_iulianNicula Iulian nicula_iulian Data 20 decembrie 2015 00:11:42
Problema Factorial Scor 25
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <iostream>
#include<fstream>
using namespace std;

int main()
{long long n,i,p,nr=0;
ifstream f("fact.in");
ofstream g("fact.out");
f>>p;
for(i=0;nr<p;i=i+5)
{
    n=i;
    while(n%5==0&&n!=0)
    {
        nr++;
        n=n/5;
    }
}
if(p==0) g<<1;
else if(nr!=p) g<<-1;
else g<<i-5;
f.close();
g.close();
    return 0;
}