I think getting a copy of the third edition is much better.
It is really worth studying even though sometimes you will be discouraged when answering some of the problems in the book and that would be normal. In fact, reading Donald Knuth's book is difficult but you should not feel bad about it.
Here is a quote from Peter Seibel's book, Coders at Work:
"I try to give the key ideas and I try to simplify them the best I can, but then what happens is every five pages of my book is somebody's career.
In other words, there's still so much more beyond any five pages of my book that you can make a lifetime's worth of study, because there's just that much in computer science."
It is really worth studying even though sometimes you will be discouraged when answering some of the problems in the book and that would be normal. In fact, reading Donald Knuth's book is difficult but you should not feel bad about it.
Here is a quote from Peter Seibel's book, Coders at Work:
"I try to give the key ideas and I try to simplify them the best I can, but then what happens is every five pages of my book is somebody's career.
In other words, there's still so much more beyond any five pages of my book that you can make a lifetime's worth of study, because there's just that much in computer science."