Insertion Sort Quiz

What is the primary advantage of using insertion sort for small data sets?

• It is simple to implement and understand.

• It is the fastest sorting algorithm available.

• It can handle large data sets efficiently.

• It requires no additional memory.

Why does the insertion sort algorithm start the for loop at index 1?

• To save computational resources.

• To ensure the algorithm runs faster.

• To skip the first item as it is already sorted.

• To avoid comparing the first item with a non-existent item.

What is the role of the 'current' variable in the insertion sort algorithm?

• It stores the sorted list.

• It tracks the number of iterations.

• It holds a copy of the item being sorted.

• It stores the index of the item being sorted.

In the provided Python code example, what is the purpose of the 'index 2' variable?

• To store the length of the list.

• To hold the sorted items.

• To track the current position in the list.

• To determine when to exit the inner while loop.

What happens when the condition 'index two is greater than zero' is false in the insertion sort algorithm?

• The algorithm terminates.

• The while loop continues.

• The list is reversed.

• The current item is placed in its final position.

How does using a linked list improve the efficiency of the insertion sort algorithm?

• It simplifies the code.

• It increases the speed of the algorithm.

• It eliminates the need to move items within the data structure.

• It reduces the number of comparisons needed.

What is a major inefficiency of the insertion sort algorithm when dealing with large data sets?

• It is too complex to implement.

• It requires too much memory.

• It involves moving many items repeatedly.

• It cannot handle unsorted data.

What is the main focus of the book 'Essential Algorithms for A Level Computer Science'?

• To cover all data structures and algorithms needed for exams.

• To provide a history of computer science.

• To offer a collection of coding challenges.

• To teach advanced programming techniques.

What format does the book use to present data structures and algorithms?

• Only in pseudocode.

• In simple English, diagrams, pseudocode, and fully coded examples.

• In a narrative story format.

• Only in fully coded examples.

What is the purpose of the QR code provided in the book?

• To download the book in PDF format.

• To access additional resources online.

• To contact the author directly.

• To unlock bonus content.