"This book should be a must for all mathematicians who are involved in the training of Mathematical Olympiad teams, but it will also be a valuable source of problems for university courses." Mathematical Reviews

• Permutations and combinations; binomial coefficients and multinomial coefficients; the Pigeonhole principle and Ramsey numbers; the principle of inclusion and exclusion; generating functions; recurrence relations.

"This book should be a must for all mathematicians who are involved in the training of Mathematical Olympiad teams, but it will also be a valuable source of problems for university courses." Mathematical Reviews

• Permutations and combinations; binomial coefficients and multinomial coefficients; the Pigeonhole principle and Ramsey numbers; the principle of inclusion and exclusion; generating functions; recurrence relations.

"This book should be a must for all mathematicians who are involved in the training of Mathematical Olympiad teams, but it will also be a valuable source of problems for university courses." Mathematical Reviews

• Permutations and combinations; binomial coefficients and multinomial coefficients; the Pigeonhole principle and Ramsey numbers; the principle of inclusion and exclusion; generating functions; recurrence relations.