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python regex
re.match: match from the beginning of the string re.search: scan through the whole string to find a match dash '-' inside square '[]' means a range. p ...
分类:编程语言   时间:2016-07-02 22:44:00    阅读次数:204
HDU 1045 Fire Net (二分匹配)
Fire Net Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Description Suppose that we have a square city with straight ...
分类:Web程序   时间:2016-07-02 18:48:17    阅读次数:258
221. Maximal Square java solutions
Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area. For example, given the following mat ...
分类:编程语言   时间:2016-07-02 15:49:17    阅读次数:141
Leetcode 69. Sqrt(x)
69. Sqrt(x) 69. Sqrt(x) Total Accepted: 99997 Total Submissions: 388728 Difficulty: Medium Implement int sqrt(int x). Compute and return the square ro ...
分类:其他好文   时间:2016-07-02 11:48:32    阅读次数:115
leetcode 367 Valid Perfect Square
题目连接 https://leetcode.com/problems/valid-perfect-square/ Valid Perfect Square Description Given a positive integer num, write a function which returns ...
分类:其他好文   时间:2016-06-30 22:58:22    阅读次数:177
匹配字符串开头的字符串
//找到以什么什么字符串开头的句子,返回yes或者no; [square.url hasPrefix:@"http:"]; //找到以什么什么字符结尾的句子,返回yes或者no; [square.url hasPrefix:@"mod:"] ...
分类:其他好文   时间:2016-06-29 20:33:51    阅读次数:130
LeetCode:Valid Perfect Square
Valid Perfect Square Total Accepted: 1976 Total Submissions: 5317 Difficulty: Medium Given a positive integer num, write a function which returns True if num is a perfect squ...
分类:其他好文   时间:2016-06-28 11:04:11    阅读次数:163
【leetcode】367. Valid Perfect Square]
题目描述: Given a positive integer num, write a function which returns True if num is a perfect square else False. 解题分析: 这种找数字的题一般都用类似与二分查找的算法。需要注意的是比较平方和 ...
分类:其他好文   时间:2016-06-28 00:38:07    阅读次数:234
59. Spiral Matrix II java solutions
Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For example,Given n = 3, You should return the followi ...
分类:编程语言   时间:2016-06-27 15:31:55    阅读次数:129
LeetCode "Valid Perfect Square"
Typical binary search.. but take care of data overflow if you are using C++ ...
分类:其他好文   时间:2016-06-27 12:03:52    阅读次数:112
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