摘要：
You are given an array colors, in which there are three colors: 1, 2 and 3. You are also given some queries. Each query consists of two integers i and 阅读全文
posted @ 2021-06-20 14:06
CNoodle
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摘要：
You are given an array of strings arr. A string s is formed by the concatenation of a subsequence of arr that has unique characters. Return the maximu 阅读全文
posted @ 2021-06-20 01:47
CNoodle
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