[LeetCode] 170. Two Sum III - Data structure design 兩數之和之三 - 數據結構設計
Design and implement a TwoSum class. It should support the following operations: add and find. add - Add the number to an internal data ...
原文：Leetcode: Two Sum III - Data structure design
The trade off should be considered:In fact, there has to be one operation s time complexity is O n and the other is O , no matter add or find. So clearly there s trade off when solve this problem, pr ...
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