listOfLists
listOfLists refers to a data structure where each element within an outer list is itself another list. This creates a nested, hierarchical arrangement of data. Imagine a spreadsheet or a grid; a listOfLists can represent such a structure, where the outer list might represent rows and the inner lists represent the columns within each row.
This data structure is commonly used in programming languages like Python, Java, and C++ to organize related
Accessing elements within a listOfLists typically requires two indices: the first index specifies which inner list