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RE: Software Engineer Interview Tips - Using Hashtable to Reduce Runtime Complexity 软件工程师面试技巧之 使用哈希表降复杂度

in #cn • 8 years ago

reduce the complexity from O(N^2) to O(N) because it is O(1) to insert and lookup in Hashtable.

8 years ago in #cn by
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     8 years ago  

    i can't understand... Do you have a working peace of code in java or JS?

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