一些好的文章/博客
反演原理
http://blog.miskcoo.com/2015/12/inversion-magic-binomial-inversion
莫比乌斯反演
https://www.cnblogs.com/peng-ym/p/8647856.html
关于组合数的小球和盒子
https://www.luogu.org/blog/chengni5673/dang-xiao-qiu-yu-shang-he-zi
狄利克雷卷积与莫比乌斯反演
https://lx-2003.blog.luogu.org/mobius-inversion
FFT与NTT
http://blog.miskcoo.com/2015/04/polynomial-multiplication-and-fast-fourier-transform#i-13
回文自动机讲解
https://blog.csdn.net/u013368721/article/details/42100363
多项式总结
https://www.luogu.org/blog/user7035/duo-xiang-shi-zong-jie
https://blog.csdn.net/semiwaker/article/details/73251486
群论相关
https://blog.csdn.net/xym_CSDN/article/details/53456447
https://blog.csdn.net/y20070316/article/details/50573488
https://fancydreams.ink/2018/08/17/咕咕oi实用群论/
图的匹配
http://www.csie.ntnu.edu.tw/~u91029/Matching.html
仙人掌
http://immortalco.blog.uoj.ac/blog/1955
线段树？
https://blog.bill.moe/segment-tree-beats-notes/
快速子集变换
https://www.cnblogs.com/Dance-Of-Faith/p/8818211.html
半平面交
https://harrybh.github.io/2018/11/29/半平面交/
后缀自动机
https://www.cnblogs.com/zjp-shadow/p/9218214.html#autoid-0-0-0
指数型生成函数(多项式ln的意义)
https://www.cnblogs.com/Mychael/p/9187796.html
动态dp
https://www.cnblogs.com/RabbitHu/p/9112811.html
FWT
https://blog.csdn.net/neither_nor/article/details/60335099
数位dp
https://www.luogu.org/blog/virus2017/shuweidp
有上下界的网络流
https://www.luogu.org/blog/top-oier/qian-tan-you-shang-xia-jie-di-wang-lao-liu
