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Update 数据结构.md
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@ -155,7 +155,7 @@ Set 继承于 Collection 接口,是一个不允许出现重复元素,并且
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红黑树的应用:
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红黑树的应用:
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TreeMap、TreeSet以及JDK1.8之后的HashMap底层都用到了红黑树。
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TreeMap、TreeSet以及JDK1.8的HashMap底层都用到了红黑树。
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**为什么要用红黑树?**
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**为什么要用红黑树?**
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