After the recursive sorting step, merge sort does not need to combine the sorted sub-arrays.
<h3>What is merge sort?</h3>
Merge sort is an efficient, general-purpose, comparison-based sorting algorithm in computer science.
Most implementations yield a stable sort, which means that the order of equal elements in the input and output is the same.
Merge Sort can be used to sort linked lists. Merge Sort is a stable sort, which means that the same element in an array retains its original position in relation to the others.
Thus, a merge sort does not need to combine the sorted sub-arrays after the recursive sorting step.
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