LCS简单问题

问题 B: 选拔赛专用题(2) 时间限制: 1 Sec   内存限制: 128 MB 提交: 52   解决: 14 [ 提交][ 状态][ 讨论版] 题目描述 A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X

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