Can I ask multiple programming languages in one Stack Overflow question? [duplicate]

Let's say I have a project from a client that requires using multiple languages for a few of logic. For example:

How can I build the addition function in C++, Java, JavaScript, and Python?

Answer Format:

1. C++

   #include <iostream>int add(int a, int b) {    // Implementation}

2. Java

   public class NewClass {    public static int add(int a, int b) {        // implementation    }}

3. JavaScript

   function add(a, b) {    // Implementation}

4. Python

   def add(a, b):    # Implementation

Is it illegal to ask with this style? What is the best practice?