See the Solution and Explanation.
this post was submitted on 02 Sep 2025
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To be fair, I had to read the linked question on SO to understand what was the possible alternative. I do expect that if I use
+=it is in place.On the other hand with Python and Java I always keep forgetting if everything is by value or by reference, I really miss some extra clarity of the languages where you can see if something is mutable when passed to a function