C++ populate template array via random generator and finally sort,print

#pragma once
#pragma comment(lib,"rpcrt4.lib")
#include <algorithm>
#include <cstring>
#include <iostream>
#include <random>
#include <vector>
#include <Windows.h>

using namespace std;


static random_device rd;
static mt19937_64 mt{ rd() };

template<typename T>
T getRandom(T min, T max)
{
    uniform_int_distribution<T> uid(min, max);
    return uid(mt);
}

template<typename T>
void getArray(T* arr, T min, T max,int len)
{
    for (int i = 0; i < len; i++)
    {
        arr[i] = getRandom<T>(min, max);
    }
}

template<typename T>
void printArray(T* arr, int len)
{
    for (int i = 0; i < len; i++)
    {
        cout << arr[i] << "\t";
    }
    cout << endl << endl << endl;
}

void arraySortDemo(int len)
{
    uint32_t* arr = new uint32_t[len];
    getArray<uint32_t>(arr, 0, UINT32_MAX,len);
    cout << "Before sort:" << endl;
    printArray(arr, len);
    cout << "After sort:" << endl;
    std::sort(arr, arr + len,std::greater<uint32_t>());
    printArray(arr, len);
    delete[] arr;
    cout << endl << endl << endl;
}

int main(int args, char** argv)
{
    arraySortDemo(100);
}