随笔分类 - leetcode
摘要：Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have ex
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摘要：题目： Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Given an input string, r
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摘要：题目描述： Given a pattern and a string str, find if str follows the same pattern. Here follow means a full match, such that there is a bijection between a
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