Explain about the merge sort algorithm
Explain about the merge sort algorithm.
Expert
A merge sort algorithm which splits the items to be sorted within two groups, recursively sorts all groups, and merges them in a last, sorted sequence. Run time is as T(n log n).
When n<2 then the array is previously sorted. Stop here.
If not, n>1, and we perform the three steps in sequence as given below:
• Sort the left and right half of the array.
• Merge the here-sorted right and left halves.
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