Use a Set data structure ideally using Redis for checking membership, for example each user has a set of user ids as friends and a set of user ids as enemies. Now all the operations would involve using union find or intersection operations.
Great idea !! awesome , thanks a lot man ! .. I got it .
is there a way to do so with emails, in order to block a received mail?
Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink.
Hide child comments as well
Confirm
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Use a Set data structure ideally using Redis for checking membership, for example each user has a set of user ids as friends and a set of user ids as enemies. Now all the operations would involve using union find or intersection operations.
Great idea !! awesome , thanks a lot man ! ..
I got it .
is there a way to do so with emails, in order to block a received mail?