Insertion Sort is a simple and intuitive sorting algorithm that works by building the final sorted array one element at a time. It maintains a sorted region of the array and repeatedly inserts the next unsorted element into its correct position within the sorted region.
Core Characteristics
- Efficient for small datasets or nearly sorted data
- Adaptive, meaning it performs fewer operations on nearly sorted arrays
- In-place sorting algorithm with a quadratic time complexity in the worst case
Key Operations
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Sort() This operation inserts each element into its correct position within the sorted region. This operation is repeated until the entire list is sorted.. Complexity: O(n^2) - Quadratic time operation
Common Applications
- Sorting small datasets or nearly sorted data
- Used as a building block for more complex algorithms
- Applicable in scenarios where simplicity and adaptability are preferred