Nesting can be defined as the practice of placing loops inside other loops. Although it is frowned upon in some applications, sometimes, it is necessary to nest loops to achieve the desired effect.
One of the use cases for nesting loops is when you need to access data inside a complex data structure. It could also be as a result of a comparison of two data structures. For instance, a computation that requires values in two lists would have you loop through both lists and execute the result. It is sometimes necessary to use one or more loops inside another loop to get to that level of granularity.
In this exercise, we will utilize nested loops:
First, create a variable called groups, which is a list that contains three other lists of three integers each:
groups = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
From the structure of the list, it is clear that just looping over it will not get us to the individual integers. To get to the individual integers, we have...