【动态规划】【二分】Petrozavodsk Winter Training Camp 2017 Day 1: Jagiellonian U Contest, Monday, January 30, 2017 Problem B. Dissertation
2017-07-09 21:56
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题意：
给定S1串，长度100w，S2串，长度1k。问它俩的LCS。
f(i,j)表示S2串前i个字符，LCS为j时，最少需要的S1串的前缀长度。转移的时候，枚举下一个字符在S1的位置即可。（可以预处理出S1中每个字符出现位置的vector，在其中二分）
给定S1串，长度100w，S2串，长度1k。问它俩的LCS。
f(i,j)表示S2串前i个字符，LCS为j时，最少需要的S1串的前缀长度。转移的时候，枚举下一个字符在S1的位置即可。（可以预处理出S1中每个字符出现位置的vector，在其中二分）
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