#include <iostream>
int * sort(int old_arr[], int n){
   int * a = new int[n];
   for (int i = 0; i < n; i++){
       *(a + i) = old_arr[i];
   }
   for(int i=0;i<n;i++){
       for (int j=0;j<n-i-1;j++){
           if(a[j]>a[j+1]){
               int c=0;
               c=a[j];
               a[j]=a[j+1];
               a[j+1]=c;
           }
       }
   }
   return a;
}

using namespace std;
int main()
{
    int n=5;
    int a[n]={4,2,3,1,5};
    int * res;
    res = sort(a, n);
    for (int i = 0; i < n; i++) cout << *(res + i) << "  ";
    cout << endl;
    delete [] res;
}