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题目链接Given two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough space to hold additional element... 阅读全文
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题目链接The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total nu... 阅读全文
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题目链接A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message c... 阅读全文
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求集合的所有子集问题LeetCode:SubsetsGiven a set of distinct integers,S, return all possible subsets.Note:Elements in a subset must be in non-descending order.Th... 阅读全文