作为c++开发,vector跟list区别,还有map的底层实现
Vector和list都是C++中的容器,它们的主要区别在于: 1. 存储方式:vector在内存中是连续存储的,而list在内存中是链接存储的。 2. 插入和删除操作:由于vector是连续存储的,所以在尾部插入和删除元素效率较高,但是在头部插入和删除元素效率较低。而list由于是链接存储的,所以在头部插入和删除元素效率较高,但是在尾部插入和删除元素效率较低。 3. 访问元素:vector支持随机访问元素,而list只能顺序访问元素。 Map是一种关联容器,它存储的是键值对,其中键是唯一的,值可以重复。Map的底层实现是一种红黑树,这是一种自平衡的二叉查找树,它可以保证在最坏情况下,插入、删除和查找元素的时间复杂度都是O(logn)。在实际使用中,如果需要频繁进行查找操作,Map的效率会更高。 [2023-11-09 00:45:10 | AI写代码神器 | 201点数解答]
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