Background Studying algorithm by Cormen et al. (2009) I was struggling to understanding specifically the merge sort algorithm. Inspire by Jeffrey Chastine (2014) approach (on a factorial recursive ...

2T (n/2) corresponds to the time required to sort the sub-arrays, and O (n) is the time to merge the entire array. When solved, the time complexity will come to O (nLogn). This is true for the worst, ...