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题目描述： Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The solution set must not 阅读全文
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题目描述： The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the tot 阅读全文
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题目描述： Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserv 阅读全文
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题目描述： Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example, Giv 阅读全文
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题目描述： Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). 阅读全文
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题目描述： Follow up for "Remove Duplicates": What if duplicates are allowed at most twice? For example, Given sorted array nums = [1,1,1,2,2,3], Your func 阅读全文
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题目描述： Given a 2D board and a word, find if the word exists in the grid. The word can be constructed from letters of sequentially adjacent cell, where 阅读全文
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题目描述： Given a set of distinct integers, nums, return all possible subsets (the power set). Note: The solution set must not contain duplicate subsets. 阅读全文
