653. Two Sum IV - Input is a BST-easy

我不懂有没有收藏之类的功能，收藏别人的解法。

tql，不懂为什么直接比较set里的值，不是两个数sum么

有一些答案都用到了iterator迭代器

http://www.cplusplus.com/reference/iterator/

我的思路是Just solve it as 2-sum problem using two pointers.

但是不懂重载的两个操作符

Need to implement BSTiterator class first, which overloads two operators: ++ and *

也不是不可以用一个数组存这些数（vector存一个order遍历下来的）

还是自己c++啥都不会，呵呵

原文地址：https://www.cnblogs.com/qvq-/p/10731766.html

时间： 2024-08-26 01:45:05

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