原文:CF367C. Hard problem

链接 http: codeforces.com group EzrFFyOc contest problem C 题意: 他希望它们按词典顺序排序 就像字典中那样 ,但他不允许交换其中的任何一个。 唯一允许他做的操作是将其中的任何一个反转 第一个字符变成最后一个, 第二个字符变成最后一个,以此类推 。 思路 DP,不断更新花费的值,并且判断是否可以满足字典序排序。 dp i 表示,表示排到第i 个 ...

2018-08-08 14:13 0 915 推荐指数:

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