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Java collections/Guava/Apache Commons library 中是否有任何Red Black Tree/ structure 实现?AVL Tree data如果是的话,你能把它们指给我看吗?基本上我正在寻找一种数据结构,其中查询应该在 O(lg n) time 发生。数据结构也会有一些更新,但不会像查询那样频繁。