Number Factorizer. Enter a number to factorize.

factorize.cpp

// This source code written by Roland Ihasz 
#include <iostream>
#include <vector>
using namespace std;

int main()
{

    int n;
    vector <int> factorial;
    int result = 1;
    cout << "Enter a number to factorize: ";
    cin >> n;
    if (n == 1 || n < 1)
    {
        cout << n << "! = " << 1 << endl;
    }
    if (n > 1)
    {
    for (int i  = 0; i < n; i++)
    {
        result *=n-i;
        factorial.push_back(result);
    }
    cout << n << "! = " << factorial[n-2] <<  endl;
    }
    return 0;
}