RDJ_Widow的博客

http://codeforces.com/contest/1105/problem/C数位DP#include<stdio.h>#include<stdlib.h>#include<math.h>#include<algorithm>#define ll long long#define pb push_back#define...

http://acm.hdu.edu.cn/showproblem.php?pid=1257在写这题时，（一个偶然的机会）让我发现了Dilworth定理。。。百度百科：https://baike.baidu.com/item/Dilworth%E5%AE%9A%E7%90%86/5489361（反正我是看不懂）放一个讲得很好的博客：https://www.cnblogs.com/gj-...