摘要：
Key points for this one: - Relate the comparison process to BST search- Reasoning on extreme values: "We can notice that for a fixed the maximum sum o 阅读全文
posted @ 2018-01-16 13:53
Tonix
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摘要：
Key point of this problem is "New subsets are the all old subsets having a[i]." - A very useful trick. After that, it'll simply be a DP one. 阅读全文
posted @ 2018-01-16 10:57
Tonix
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