👉 Prefunction is a concept in computer science, specifically related to algorithms and data structures. It refers to a function that has been called but not yet executed or implemented. In other words, it is a function that has not been fully defined or implemented. For example, consider a function `f` that takes an integer `n` as input and returns an integer. The prefunction of `f` would be: ``` prefunction f(n) { return n; } ``` In