随笔分类 - Others
摘要：###哈哈哈希 ```cpp //一种好写且卡不掉的树哈希 //https://peehs-moorhsum.blog.uoj.ac/blog/7891 int hs(int x) { return x*x*x*1237123+19260817; } int h(int x) { int cur=h
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摘要：https://www.luogu.com.cn/blog/virus2017/shuweidp 数位DP https://www.cnblogs.com/Phoenix41/p/12537234.html 组合数学选讲 https://www.xht37.com/my-oi/ noi Ag选手xh
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