Hashing problems (length of longest subarray with sum)

sir this video have only visual effects ,there is no sound while i m playing it.
plz have a look

@sameeksha,
Please drop a mail to [email protected]. It is a technical issue and should be resolved soon. Thanks.

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.