Here, in solution the comparator function is taking a<b condition which sort the elements in decreasing order but we want to sort the activity as per increasing end time, right ?
Regarding comparator function
I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.
On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.