Phoebe815

2014年11月12日

摘要： The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total number... 阅读全文

posted @ 2014-11-12 13:47 Phoebe815 阅读(128) 评论(0) 推荐(0) 编辑

[Leetcode] Max Points on a Line

摘要： Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.Solution: 1 /** 2 * Definition for a point. 3 * cla... 阅读全文

posted @ 2014-11-12 09:43 Phoebe815 阅读(133) 评论(0) 推荐(0) 编辑

2014年11月10日

[Leetcode] Median of Two Sorted Arrays

摘要： There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be ... 阅读全文

posted @ 2014-11-10 15:42 Phoebe815 阅读(165) 评论(0) 推荐(0) 编辑

[Leetcode] Maximal Rectangle

摘要： Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area.Solution: 1 public class Solution... 阅读全文

posted @ 2014-11-10 05:54 Phoebe815 阅读(114) 评论(0) 推荐(0) 编辑

2014年11月2日

[Leetcode] Pascal's Triangle II

摘要： Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you optimize your algorithm to use onlyO(... 阅读全文

posted @ 2014-11-02 10:42 Phoebe815 阅读(148) 评论(0) 推荐(0) 编辑

[Leetcode] Pascal's Triangle

摘要： GivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Return[ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4,1]... 阅读全文

posted @ 2014-11-02 04:59 Phoebe815 阅读(109) 评论(0) 推荐(0) 编辑

[Leetcode] Merge Sorted Array

摘要： 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 (size that is greater or equal... 阅读全文

posted @ 2014-11-02 04:19 Phoebe815 阅读(87) 评论(0) 推荐(0) 编辑

[Leetcode] Binary Tree Level Order Traversal II

摘要： Given a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from left to right, level by level from leaf to root).For exa... 阅读全文

posted @ 2014-11-02 03:51 Phoebe815 阅读(149) 评论(0) 推荐(0) 编辑

[Leetcode] Binary Tree Level Order Traversal

摘要： Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from left to right, level by level).For example:Given binary tree{3,9,2... 阅读全文

posted @ 2014-11-02 02:59 Phoebe815 阅读(117) 评论(0) 推荐(0) 编辑

2014年11月1日

[Leetcode] Scramble String

摘要： Given a strings1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.Below is one possible representation... 阅读全文

posted @ 2014-11-01 16:13 Phoebe815 阅读(129) 评论(0) 推荐(0) 编辑

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