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v0.0.0-...-a49be92
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Published: Feb 20, 2024
License: MIT
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README
¶
最长回文子序列
给你一个字符串 s
,找出其中最长的回文子序列,并返回该序列的长度。
子序列定义为:不改变剩余字符顺序的情况下,删除某些字符或者不删除任何字符形成的一个序列。
示例 1:
输入:s = "bbbab"
输出:4
解释:一个可能的最长回文子序列为 "bbbb" 。
示例 2:
输入:s = "cbbd"
输出:2
解释:一个可能的最长回文子序列为 "bb" 。
提示:
1 <= s.length <= 1000
s
仅由小写英文字母组成
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