👉 In the context of computer science, an "unsulliable" object refers to a data structure or algorithm that is not capable of satisfying certain requirements or constraints. In other words, it cannot fulfill its intended purpose due to some inherent limitations or constraints. For example, consider a linked list in which each node has a unique identifier (a key) and a pointer to the next node. If you try to insert an element into this list without specifying any of its values, the list will be uns