一些好的文章

反演原理

http://blog.miskcoo.com/2015/12/inversion-magic-binomial-inversion

莫比烏斯反演

https://www.cnblogs.com/peng-ym/p/8647856.html

關於組合數的小球和盒子

https://www.luogu.org/blog/chengni5673/dang-xiao-qiu-yu-shang-he-zi

狄利克雷卷積與莫比烏斯反演

https://lx-2003.blog.luogu.org/mobius-inversion

FFT與NTT

http://blog.miskcoo.com/2015/04/polynomial-multiplication-and-fast-fourier-transform#i-13

迴文自動機講解

https://blog.csdn.net/u013368721/article/details/42100363

多項式總結

https://www.luogu.org/blog/user7035/duo-xiang-shi-zong-jie

https://blog.csdn.net/semiwaker/article/details/73251486

羣論相關

https://blog.csdn.net/xym_CSDN/article/details/53456447

https://blog.csdn.net/y20070316/article/details/50573488

https://fancydreams.ink/2018/08/17/%E5%92%95%E5%92%95oi%E5%AE%9E%E7%94%A8%E7%BE%A4%E8%AE%BA/

圖的匹配

http://www.csie.ntnu.edu.tw/~u91029/Matching.html

仙人掌

http://immortalco.blog.uoj.ac/blog/1955

線段樹？

https://blog.bill.moe/segment-tree-beats-notes/

快速子集變換

https://www.cnblogs.com/Dance-Of-Faith/p/8818211.html

半平面交

https://harrybh.github.io/2018/11/29/%E5%8D%8A%E5%B9%B3%E9%9D%A2%E4%BA%A4/

後綴自動機

https://www.cnblogs.com/zjp-shadow/p/9218214.html#autoid-0-0-0

指數型生成函數(多項式ln的意義)

https://www.cnblogs.com/Mychael/p/9187796.html

動態dp

https://www.cnblogs.com/RabbitHu/p/9112811.html

FWT

https://blog.csdn.net/neither_nor/article/details/60335099

數位dp

https://www.luogu.org/blog/virus2017/shuweidp

有上下界的網絡流

https://www.luogu.org/blog/top-oier/qian-tan-you-shang-xia-jie-di-wang-lao-liu