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Comments (15)

Persdre avatar Persdre commented on May 19, 2024 5

working on b tree...

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Persdre avatar Persdre commented on May 19, 2024 2

working on leafy tree...

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Enter-tainer avatar Enter-tainer commented on May 19, 2024

我或许可以写一下 llrbt (咕咕预警

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CoelacanthusHex avatar CoelacanthusHex commented on May 19, 2024

我可能会写篇 b tree 和 b+ tree 上去(超级大鸽子警告

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pluveto avatar pluveto commented on May 19, 2024

怎么回事?还没有啊

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Enter-tainer avatar Enter-tainer commented on May 19, 2024

怎么回事?还没有啊

@pluveto 欢迎来开一个 PR 来添加这些内容~

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william-song-shy avatar william-song-shy commented on May 19, 2024

还在鸽啊

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Persdre avatar Persdre commented on May 19, 2024

working on it...

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Great-designer avatar Great-designer commented on May 19, 2024

这看来是祖坟级issue,留个名先:
B树和B+树是408考研当中的内容(另外似乎还有b-树和b*树),可以在王道考研上找到,在《算法导论》上也有相应讲解……
我好像还没见过使用这两个树的题目与代码,算是见识过于浅薄了……

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CoelacanthusHex avatar CoelacanthusHex commented on May 19, 2024

我好像还没见过使用这两个树的题目与代码,算是见识过于浅薄了……

这两个都是为磁盘优化的数据结构,在 OI 这种根本不会去操作磁盘的环境优势不明显

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Enter-tainer avatar Enter-tainer commented on May 19, 2024

Rust标准库里面的map就是btreemap,原因是局部性比较好(

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CoelacanthusHex avatar CoelacanthusHex commented on May 19, 2024

Rust标准库里面的map就是btreemap,原因是局部性比较好(

我记得也和语言设计也有关,有人用 Java 写 BTreeMap,性能并不理想

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Great-designer avatar Great-designer commented on May 19, 2024

我好像还没见过使用B树和B+树的题目与代码,算是见识过于浅薄了……

我见过手写avl树的,avl树代码不长。当然,avl树在OI Wiki上已经有了。
手写红黑树也见过,红黑树代码就很长了,大概12000字符左右。据说STL的map底层用的是左偏红黑树。红黑树在OI Wiki上暂时还没有……

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ACHL-02 avatar ACHL-02 commented on May 19, 2024

expected ovo

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Great-designer avatar Great-designer commented on May 19, 2024

祝贺

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