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NP vs NP-Complete vs NP-Hard — what does it all mean?
Euler circuit problem can be easily solved in polynomial time
Hamilton circuit problem is proved to be NP-hard
nobody in the world can give a polynomial time algorithm for a NP-hard problem
多天的时间和国家警察的硬性意味着什么? 我知道什么是O(n)。
全天候时间是指有固定的<代码>a,这样,贵算法的复杂性即为O(n^a)。
Here是对NP-hard的解释。
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