B+树和B树的时间复杂度
时间: 2023-11-13 09:15:07 浏览: 42
B树是一种平衡多路搜索树,它是对平衡二叉查找树的升级版。B树的时间复杂度与平衡二叉查找树相同,都是O(logn)。相比平衡二叉树,B树存储的关键字更多,每个节点可以有更多孩子节点,层级更少,从而减少了磁盘IO的次数,提高了查询效率。因此,B树适合在存储大量数据的场景下使用,如数据库索引。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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