Useful links and videos on mergesort algorithm

Following are some good links and video of mergesort algorithm. Mergesort takes spaces for sorting but it is still efficient algorithm for sorting. It uses divide and conquer method for sorting.

Links of meresort algorithms

https://www.hackerearth.com/practice/algorithms/sorting/merge-sort/tutorial/

Videos of mergesort algorithm

https://www.youtube.com/watch?v=JSceec-wEyw
https://www.youtube.com/watch?v=TzeBrDU-JaY&t=764s