Cod sursa(job #1742309)

Utilizator Cudrici_CarinaCudrici Carina Cudrici_Carina Data 16 august 2016 11:45:23
Problema Factorial Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream fi("fact.in");
ofstream fo("fact.out");
long long p,n,i,sol,nr;
int main()
{
fi>>p;
if (p==0) {fo<<1;return 0;}
for(i=1;sol<p;i++)
{nr=5*i;
 while(nr%5==0){sol++;nr/=5;}
}

if(sol==p) fo<<(i-1)*5;
   else fo<<'-1';
    return 0;
}