12.1.5 - Recursive Formulation
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Practice Questions
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Explain the basic principle of insertion sort.
💡 Hint: Think about how one would sort playing cards.
What is the time complexity of insertion sort in the worst case?
💡 Hint: Consider the number of comparisons needed in the worst-case scenario.
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Interactive Quizzes
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What is the main idea behind insertion sort?
💡 Hint: Think about how the algorithm progresses with each element.
Is insertion sort efficient for small datasets?
💡 Hint: Think about the ease of inserting few elements.
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Challenge Problems
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Write a function that sorts an array using the recursive insertion sort approach and explain your thought process.
💡 Hint: Think through how to keep your base case clear and how to recursively sort the smaller elements.
Given a nearly sorted array, explain how insertion sort's efficiency changes and provide a justification.
💡 Hint: Reflect on how comparisons are reduced in already sorted data.
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