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 270 / 318 1000
Fork and knife 229 / 236 1100
Binomial coefficient 2 185 / 206 1100
Equation 188 / 194 1300
Array rearrangement 176 / 184 1300
Value of subsequences 158 / 167 1400
Inequation 141 / 145 1400
Growing mushrooms 142 / 144 1500
Binary matrix 72 / 89 1600
Broken board 45 / 56 1600
Triangles counting 34 / 65 1800
Minecraft graph 6 / 9 1800
Restricted path 23 / 28 1900
Heavenly Peach Garden 8 / 11 2000