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No.205 Ismorphic StringsGiven two stringssandt, determine if they are isomorphic.Two strings are isomorphic if the characters inscan be replaced to ge... 阅读全文
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No.217 Contains DuplicateGiven an array of integers, find if the array contains any duplicates. Your function should return true if any value appears ... 阅读全文
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No.14 Longest Common PrefixWrite a function to find the longest common prefix string amongst an array of strings.求一组string的最长公共前缀想法：找到最短的那个，然后依次对比典型的字... 阅读全文