Cod sursa(job #2549861)
Utilizator | Bolota Iustin iustin2004 | Data | 18 februarie 2020 08:37:58 |
---|---|---|---|
Problema | Factorial | Scor | 40 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.43 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
int p,i,nrz,x,n;
int main()
{
fin>>p;
if(p==0){fout<<1;
return 0;}
nrz=0;
i=5;
while(nrz<p)
{
x=i;
while(x%5==0)
{
nrz++;
x=x/5;
}
i=i+5;
}
if(nrz==p)
fout<<i-5;
else
fout<<-1;
return 0;
}