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Re:可以用2维线段树，或四分树。

Posted by test_solution at 2014-08-05 18:53:20 on Problem 3368 and last updated at 2014-08-05 19:05:23
In Reply To:Re:可以用2维线段树，或四分树。 Posted by:test_solution at 2014-08-05 18:23:58

> 哪个oj有加强版，我想写一下。。。
这道题还可以 再加强一下，  一棵n个点的带权树，  q个查询， 查询一条链上的
most frequent value   (n<=10^5,q<=10^5) 

不知道能不能再加点 修改权值的操作，  研究研究，改天出成一道题。。 
貌似比较丧心病狂

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