please help using c++

*Question 3 The interface of a class which models a recently-used list of strings is given in Listing 1. A recently-used list allows items to be retrieved in the reverse order of insertion. For example, the last item added (the most recent item) is at the front of the list and is the first item to be retrieved. A recently-used list may not contain duplicate items. If an attempt is made to add an item to the list which is already contained in the list, that item is simply moved to the front of the list. Listing 1: RecentlyUsedList's public interface Provide a reasonable number of tests, using the googletest framework, to verify that the recently-used list works as expected. The framework's syntax and assertions are given in Listing 2. Listing 2: Googletest framework: syntax and assertions