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2018年3月27日
leetcode 13. Roman to Integer
摘要： Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. Roman Numerals Chart M=1000 D = 500 I 1 XX 阅读全文
posted @ 2018-03-27 21:23 bonelee 阅读(374) 评论(0) 推荐(0)
python 判断是否为有效域名
摘要： import re pattern = re.compile( r'^(([a-zA-Z]{1})|([a-zA-Z]{1}[a-zA-Z]{1})|' r'([a-zA-Z]{1}[0-9]{1})|([0-9]{1}[a-zA-Z]{1})|' r'([a-zA-Z0-9][-_.a-zA-Z0-9]{0,61}[a-zA-Z0-9]))\.' r'([a... 阅读全文
posted @ 2018-03-27 12:01 bonelee 阅读(4834) 评论(0) 推荐(0)
2018年3月26日
leetcode 169. Majority Element
摘要： Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the 阅读全文
posted @ 2018-03-26 23:25 bonelee 阅读(195) 评论(0) 推荐(0)
leetcode 733. Flood Fill
摘要： An image is represented by a 2-D array of integers, each integer representing the pixel value of the image (from 0 to 65535). Given a coordinate (sr, 阅读全文
posted @ 2018-03-26 23:22 bonelee 阅读(467) 评论(0) 推荐(0)
最大信息系数——检测变量之间非线性相关性
摘要： https://blog.csdn.net/qtlyx/article/details/50780400 最后的效果就是这样的。很明显可以看到，左下角那个有点像三角函数的关系，Pearson系数(就是线性相关系数)为0，而MIC则有0.8。 摘自：http://tech.ifeng.com/a/20 阅读全文
posted @ 2018-03-26 16:11 bonelee 阅读(27016) 评论(0) 推荐(2)
2018年3月25日
leetcode 453. Minimum Moves to Equal Array Elements
摘要： Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n 阅读全文
posted @ 2018-03-25 20:46 bonelee 阅读(207) 评论(0) 推荐(0)
leetcode 492. Construct the Rectangle
摘要： For a web developer, it is very important to know how to design a web page's size. So, given a specific rectangular web page’s area, your job by now i 阅读全文
posted @ 2018-03-25 20:28 bonelee 阅读(219) 评论(0) 推荐(0)
leetcode 598. Range Addition II
摘要： Given an m * n matrix M initialized with all 0's and several update operations. Operations are represented by a 2D array, and each operation is repres 阅读全文
posted @ 2018-03-25 12:34 bonelee 阅读(192) 评论(0) 推荐(0)
leetcode 349. Intersection of Two Arrays
摘要： Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element 阅读全文
posted @ 2018-03-25 12:20 bonelee 阅读(159) 评论(0) 推荐(0)
leetcode 171. Excel Sheet Column Number
摘要： Related to question Excel Sheet Column Title Given a column title as appear in an Excel sheet, return its corresponding column number. For example: 阅读全文
posted @ 2018-03-25 12:15 bonelee 阅读(146) 评论(0) 推荐(0)
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