Compressed message: Which algorithm? Which response?
You receive a compressed message that is unreadable in its original form. Determine the algorithm based on the spelling and write the decompressed message.
The content of the message is:
(0,0,B) (6,1,C) (0,0,D) (3,3,A) (2,3,E) (-,-,-)
I look at the sender of the email.
If it's a friend/acquaintance, I ask what I should do with it.
If I don't know the sender, the email ends up in the spam folder and is ignored.
If the sender is a student/trainee, I reply that they should do their homework on their own or ask for help like any normal person.
I don't understand it