Counts and their application. A popular book for schoolchildren and teachers. Berezina L.Yu.

A real book at a publicly available level introduces the reader to one of the modern and developing sections of mathematics - the theory of counts and its applications. The proposed sets of examples and exercises clearly illustrate the basic concepts and theoretical provisions, give ideas about the basic ideas and methods of the theory of graphs.

The book is addressed to high school students, showing interest in modern mathematics and solving problems with non -traditional methods, as well as Teachers for conducting elective courses for the choice of students, circle work. It can be used by students and teachers of institutions of secondary and higher professional education in the study of the beginning of discrete mathematics.