Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.题解：开始想到的方法比较偷懒，直接遍历一遍数组，把每个ListNode对应的值放到...
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其他好文 时间：
2014-07-22 22:45:13
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271
The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"one 1"or11.11is read off as"tw...
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其他好文 时间：
2014-07-22 22:43:14
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198
Follow up for "Search in Rotated Sorted Array":What ifduplicatesare allowed?Would this affect the run-time complexity? How and why?Write a function to...
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其他好文 时间：
2014-07-22 00:35:34
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238
Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with ...
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其他好文 时间：
2014-07-22 00:30:38
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212
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间：
2014-07-22 00:28:36
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169
Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximu...
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其他好文 时间：
2014-07-22 00:12:36
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156
Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximu...
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其他好文 时间：
2014-07-22 00:09:37
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151
Write a function to find the longest common prefix string amongst an array of strings.题解：以strs[0]为模板，每次挨个查看是否所有的串里面是否第i位上都和strs[0]一样，如果都一样，把i位置上的字符放到a...
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其他好文 时间：
2014-07-21 23:31:00
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267
Given a set of distinct integers,S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not co...
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其他好文 时间：
2014-07-21 14:11:16
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151
Implementatoito convert a string to an integer.Hint:Carefully consider all possible input cases. If you want a challenge, please do not see below and ...
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其他好文 时间：
2014-07-21 08:36:32
阅读次数：
208
