"Partly based on a Romanian version ... preserving the title ... and about 40% of the text"--Preface.
Includes bibliographical references (pages 313-316) and index.
"The book reflects the unique experience of the authors. It distills a vast mathematical literature, most of which is unknown to the western public, and captures the essence of an abundant problem culture. The target audience includes undergraduates, high school students and their teachers, mathematical contestants (such as those training for Olympiads or the W.L. Putnam Mathematical Competition) and their coaches, as well as anyone interested in essential mathematics."--Jacket.