Textbook for graduate number theory I am attending a graduate number theory, the professor did not assign any textbook. The materials are somewhere along the advanced/algebraic level such as Ring of Gaussian Integers, Quadratic Number Fields and especially about Euclidean Domain. Any suggestion to textbooks that I can read for self study? I prefer books that has lots of problems and their worked out solutions. Thank you for your time and help.

a good book is Problems in Algebraic Number Theory by Murty. It overs all of those things, and more and is 'problem-orientated,' so you do most of the work!
