Counting Sort 2

#include <iostream>
#include <cstring>

using namespace std;

int main()
{
    int n, in, temp;
    cin >> n;
    int arr[n];
    for(int i = 0; i < n; i++)
        {
        cin >> arr[i] ;
    }
  for(int i=0; i<n ;i++)
      {
        for(int j=0;j<n;j++)
            {
                if(arr[i] < arr[j])
                    {
                        temp = arr[i];
                        arr[i] = arr[j];
                        arr[j] = temp;


                }


        }



  }

    for(int i = 0; i < n; i++){
            cout << arr[i]  << " ";
    }
    cout << endl;

    return 0;
}