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 235 / 283 1000
Fork and knife 192 / 199 1100
Binomial coefficient 2 156 / 175 1100
Equation 155 / 161 1300
Array rearrangement 149 / 154 1300
Value of subsequences 130 / 139 1400
Inequation 111 / 113 1400
Growing mushrooms 115 / 117 1500
Binary matrix 60 / 76 1600
Broken board 36 / 46 1600
Triangles counting 29 / 56 1800
Minecraft graph 4 / 4 1800
Restricted path 22 / 27 1900
Heavenly Peach Garden 7 / 10 2000