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Given an array of strings, group anagrams together. Example: Note: All inputs will be in lowercase. The order of your output does not matter. 判断anagra 阅读全文
posted @ 2018-11-25 19:28
fatttcat
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Equations are given in the format A / B = k, where A and B are variables represented as strings, and k is a real number (floating point number). Given 阅读全文
posted @ 2018-11-25 19:17
fatttcat
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Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character. Example 1: Input: S = 阅读全文
posted @ 2018-11-25 16:13
fatttcat
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Given an array of characters, compress it in-place. The length after compression must always be smaller than or equal to the original array. Every ele 阅读全文
posted @ 2018-11-25 09:42
fatttcat
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Sometimes people repeat letters to represent extra feeling, such as "hello" -> "heeellooo", "hi" -> "hiiii". Here, we have groups, of adjacent letters 阅读全文
posted @ 2018-11-25 05:34
fatttcat
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