Module Introduction to combinatorics

Introduction to combinatorics

**Frequency: 7/10** Combinatorics problems are quite common in Competitive Programming.

Resources

Tài liệu Tiếng Anh: - [CP Algorithms: Binomial Coefficients](https://cp-algorithms.com/combinatorics/binomial-coefficients.html) - [CP Algorithms: Stars and bars](https://cp-algorithms.com/combinatorics/stars_and_bars.html)

Problems

Binomial coefficient 163 / 203 1000
Fork and knife 126 / 131 1100
Binomial coefficient 2 92 / 106 1100
Equation 97 / 105 1300
Array rearrangement 97 / 100 1300
Value of subsequences 80 / 88 1400
Inequation 66 / 69 1400
Growing mushrooms 74 / 76 1500
Binary matrix 35 / 47 1600
Broken board 20 / 24 1600
Triangles counting 14 / 32 1800
Restricted path 16 / 18 1900
Heavenly Peach Garden 1 / 1 2000