Pass and return array from function C++ code example

Example: return array from function c++

#include <iostream> 
using namespace std; 
  
int* fun() 
{ 
    int* arr = new int[100]; 
  
    /* Some operations on arr[] */
    arr[0] = 10; 
    arr[1] = 20; 
  
    return arr; 
} 
  
int main() 
{ 
    int* ptr = fun(); 
    cout << ptr[0] << " " << ptr[1]; 
    return 0; 
}