👉 Unsortable is a concept in computer science that refers to an array or list of elements that cannot be sorted into two distinct lists, even though they are comparable. This means that if one element is present in both lists, it will not be able to be removed from either list, as the other element must exist in both. In simpler terms, unsortable arrays are like a set where some elements are already present but others cannot be found or removed. For example, consider an array of integers [
