Title: A Common-Sense Guide to Data Structures and Algorithms, Second Edition by @jaywengrow
In exercise #3 of chapter #7, I suggest clarifying that the numbers in the array must be integers, and specify a range for any number in the array. This will have a huge effect on the average computation time, I think. For example, if the numbers were random floating point numbers, and/or could be in the range of 0…MAX_INT, then I think the average computation would be extremely close to the worst case.