徐公砚
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徐公砚的特点是什么？？
徐公砚早在唐宋时期即负盛名，产自山东沂南，属于鲁砚中的重要品种。徐公砚的特点是石质坚硬，密度极高。叩之清脆，其声如磬，下墨如挫，发墨如油，色泽鲜润，且不损毫，堪称砚石材中之上品。[详细]
2023-02-05 09:30 分类：问答What is order notation f(n)=O(g(n))?
Question 1: Under what circumstances would O(f(n)) = O(k f(n)) be the most appropriate form of time-complexity analysis?[详细]
2022-12-26 13:29 分类：问答C++ Profiling: KiFastSystemCallRet
I searched for this after seeing it\'s the top rated item when profiling using Very Sleepy, andit seems everyone gets the answer \"it\'s a system function, ignore it\". But Sleepy\'s hint for the func[详细]
2022-12-26 07:58 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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