摘要：
Given a string, sort it in decreasing order based on the frequency of characters. Example 1: Input: "tree" Output: "eert" Explanation: 'e' appears twi 阅读全文
posted @ 2018-07-10 17:51
Lin.B
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摘要：
A website domain like "discuss.leetcode.com" consists of various subdomains. At the top level, we have "com", at the next level, we have "leetcode.com 阅读全文
posted @ 2018-07-10 16:48
Lin.B
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摘要：
Given n points in the plane that are all pairwise distinct, a "boomerang" is a tuple of points (i, j, k) such that the distance between iand j equals 阅读全文
posted @ 2018-07-10 16:06
Lin.B
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