Not splitting into smaller arrays

Not splitting into smaller arrays using lo and hi and then calling recursively?

hwy @nikhiv6
Not splitting into smaller arrays using lo and hi and then calling recursively?
Answer : Never

Merge Sort is a Divide and Conquer algorithm. It divides input array in two halves, calls itself for the two halves and then merges the two sorted halves. The merge() function is used for merging two halves. The merge(arr, l, m, r) is key process that assumes that arr[l…m] and arr[m+1…r] are sorted and merges the two sorted sub-arrays into one.