Cod sursa(job #3030143)
Utilizator | Data | 17 martie 2023 15:34:27 | |
---|---|---|---|
Problema | Factorial | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.31 kb |
#include <fstream>
using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
long long n;
long long nr(long long n)
{
int k=0;
for(long long i=5; i<n; i*=5)
k++;
if(n) return 5*(n-k);
return 1;
}
int main()
{
fin>>n;
fout<<nr(n);
return 0;
}