Problems in Enumeration

This ebook contains a highly selected problems in
enumeration.
This ebook teach you how to count.
But that's not quite as silly as it may seem,
since enumeration is concerned particularly with counting the
number of ways in which something can be done.
It is not a collection of very
difficult, impenetrable questions. Instead, the ebook gradually builds
students' combinatorial skills and techniques.
It provides in-depth enrichment in important areas of combinatorics
by reorganizing and enhancing students' problem-solving tactics and
strategies.