I dont understand why greedy doesnot work on this problem?

i feel greedy should work in this appraoch

Refer the video on this question. There must be a discussion there how greedy is failing.

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.