Leveraging Python's built-in sum() function simplifies the code, making it more concise and easier to read, while improving overall clarity and efficiency.

this is my solution with java

public static int simpleArraySum(List ar) { int suma = 0; for(int i = 0; i < ar.size(); i++){ suma+=ar.get(i); }

    return suma;
}

The use of Python's built-in sum() function makes the code concise and easy to understand.

Using Kotlin

fun simpleArraySum(ar: Array): Int {

// Write your code here

return ar.sum()

}

Great exercise!