juniorSorting
What is the best-case complexity of Insertion Sort?
Updated Apr 28, 2026
Short answer
O(n), which occurs when the array is already sorted.
Deep explanation
Sorting is the process of arranging data in a specific order. O(n), which occurs when the array is already sorted. Fundamental sorts are essential for understanding algorithmic trade-offs.
Real-world example
Sorting a hand of cards during a game.
Common mistakes
- Assuming O(n^2) algorithms are suitable for large production datasets.
Follow-up questions
- What is the worst-case for Bubble Sort?