merge_sort.c
* fix segmentation fault * add a comments * add print error message when can't malloc and exit program * Update sorting/merge_sort.c Co-authored-by: Sharon "Cass" Cassidy <monadicdiffusive@proton.me> * Update sorting/merge_sort.c Co-authored-by: Sharon "Cass" Cassidy <monadicdiffusive@proton.me> --------- Co-authored-by: Sharon "Cass" Cassidy <monadicdiffusive@proton.me>