第二十章 组合数学与计数

## 第二十章 组合数学与计数 ### 集合与容斥原理 - [P3197 [HNOI2008]越狱](https://www.luogu.com.cn/problem/P3197) - [P5664 [CSP-S2019] Emiya 家今天的饭](https://www.luogu.com.cn/problem/P5664) - [P1287 盒子与球](https://www.luogu.com.cn/problem/P1287) - [P1450 [HAOI2008]硬币购物](https://www.luogu.com.cn/problem/P1450) ### 常见的组合计数方法 - [P5520 [yLOI2019] 青原樱](https://www.luogu.com.cn/problem/P5520) - [P4071 [SDOI2016]排列计数](https://www.luogu.com.cn/problem/P4071) ### 二项式定理 - [P1313 [NOIP2011 提高组] 计算系数](https://www.luogu.com.cn/problem/P1313) - [CF1332E Height All the Same](https://www.luogu.com.cn/problem/CF1332E) ### 卡特兰数与斯特林数 - [P1044 [NOIP2003 普及组] 栈](https://www.luogu.com.cn/problem/P1044) - [P1287 盒子与球](https://www.luogu.com.cn/problem/P1287) ### 课后习题与实验 - [P2567 [SCOI2010]幸运数字](https://www.luogu.com.cn/problem/P2567) - [P5505 [JSOI2011]分特产](https://www.luogu.com.cn/problem/P5505) - [P3223 [HNOI2012] 排队](https://www.luogu.com.cn/problem/P3223) - [P2822 [NOIP2016 提高组] 组合数问题](https://www.luogu.com.cn/problem/P2822) - [P3214 [HNOI2011] 卡农](https://www.luogu.com.cn/problem/P3214) - [P2532 [AHOI2012]树屋阶梯](https://www.luogu.com.cn/problem/P2532) - [P3200 [HNOI2009]有趣的数列](https://www.luogu.com.cn/problem/P3200) - [CF1278F Cards](https://www.luogu.com.cn/problem/CF1278F) - [P3228 [HNOI2013]数列](https://www.luogu.com.cn/problem/P3228) - [CF961G Partitions](https://www.luogu.com.cn/problem/CF961G)