1. The usage of a nested loop (loop within a loop) is a strong indicator of a quadratic algorithm. Explain why. Describe an example to illustrate your explanation. 2. Considering the performance of the linear and binary search algorithms, when trying to find an item in a large unsorted list, is it better to a) do a linear search or b) sort the list and then perform a binary search? Use Big O analysis to support your response Please be as detailed as possible!