摘要：
链接：https://ac.nowcoder.com/acm/contest/11255/F 来源：牛客网 题目描述 Alice and Bob are playing a game. At the beginning, there is an undirected graph GG with nn 阅读全文
摘要：
链接：https://ac.nowcoder.com/acm/contest/11255/I 来源：牛客网 题目描述 For a sequence t1...nt1...n, we define the weight of it is the number of pairs (i,j)(i,j) s 阅读全文
摘要：
链接：https://ac.nowcoder.com/acm/contest/11255/C 来源：牛客网 题目描述 Let LCS(s1,s2)LCS(s1,s2) denote the length of the longest common subsequence (not necessary 阅读全文
摘要：
链接：https://ac.nowcoder.com/acm/contest/11255/J 来源：牛客网 题目描述 Bob has an n×mn×m matrix WW. This matrix is very special, It's calculated by two sequences 阅读全文