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一.最长上升子序列(LIS) LIS(Longest Increasing Subsequence)最长上升子序列 一个数的序列bi,当b1 < b2 < … < bS的时候,我们称这个序列是上升的。 对于给定的一个序列(a1, a2, …, aN),我们可以得到一些上升的子序列(ai1, ai2, 阅读全文
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Problem Description Calabash is the servant of a landlord. The landlord owns a piece of land, which can be regarded as an infinite 2D plane.One day th 阅读全文
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Problem Description Considering the overall difficulty of other problems, we invite Quailty to propose an easy problem for this contest.Quailty accide 阅读全文
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Problem Description Roundgod is a famous milk tea lover at Nanjing University second to none. This year, he plans to conduct a milk tea festival. Ther 阅读全文