Evaluate two sorting or two search algorithms : Selection sort demonstration and complexity analysis

The video tutorial explains the selection sort algorithm, which sorts a list by repeatedly finding the smallest element and moving it to the beginning. The process involves using a spot marker to track sorted sections and iterating through the list to perform swaps. The video also covers the complexity of the algorithm, which is O(n^2), and encourages viewers to implement the algorithm in Python.

What is the primary goal of the selection sort algorithm?

• To sort the list in descending order

• To move the smallest number to the beginning of the list

• To find the median of the list

• To move the largest number to the end of the list

In selection sort, what is the purpose of the spot marker?

• To indicate the end of the list

• To keep track of the largest number

• To mark the position of the smallest number found

• To track the sorted portion of the list

During the selection sort process, what happens when a smaller number is found?

• It is swapped with the current marker position

• It is moved to the end of the list

• It is added to a separate list

• It is ignored

What observation can be made about the sublist to the left of the spot marker during selection sort?

• It contains the largest numbers

• It contains duplicate numbers

• It is always unsorted

• It is always sorted

What is the time complexity of the selection sort algorithm?

• O(log n)

• O(n^2)

• O(n log n)

• O(n)

Why do we use the full length of the list (N) in complexity analysis, even though the inner loop runs fewer times each iteration?

• Because the list length never changes

• Because lower order terms are dropped in complexity analysis

• Because it simplifies the algorithm

• Because it is easier to calculate

What is the impact of dropping lower order terms in complexity analysis?

• It makes the algorithm faster

• It simplifies the complexity expression

• It increases the complexity

• It provides a more accurate measure of performance