05 August 2008
给你一个字符串 s 和一个字符串数组 dictionary ,找出并返回 dictionary 中最长的字符串,该字符串可以通过删除 s 中的某些字符得到。
如果答案不止一个,返回长度最长且字母序最小的字符串。如果答案不存在,则返回空字符串。
示例 1:
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输入:s = "abpcplea", dictionary = ["ale","apple","monkey","plea"]
输出:"apple"
示例 2:
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输入:s = "abpcplea", dictionary = ["a","b","c"]
输出:"a"
提示:
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1 <= s.length <= 1000
1 <= dictionary.length <= 1000
1 <= dictionary[i].length <= 1000
s 和 dictionary[i] 仅由小写英文字母组成