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Leetcode 65. Valid Number 验证数字 解题报告
1 解题思想这道题条条框框是在太多了,各种情况。。不过简略来说,正确的做法应该是: 1、熟悉数字的表述规则(可以看网上的,也可以看我代码的),这道题关键是要懂所有的数字规则。 2、对输入的数字首先进行必要的检测,是否有abc或者中间空格等非法字符 3、将e前面和e后面分开计算!2 原题Validate if a given string is numeric.Some examples: “...
分类:其他好文   时间:2016-05-12 22:57:32    阅读次数:152
HiveQL基本操作整理
1. 创建操作1.1 创建表CREATE TABLE pokes (foo INT, bar STRING); 1.2 基于现有的表结构创建一个新表create table new_table like records; 1.3 创建视图:CREATE VIEW valid_records AS SELECT * FROM records2 WHERE temperature !=9999; 1.4...
分类:其他好文   时间:2016-05-12 09:22:49    阅读次数:405
ios开发时候,出现A valid provisioning profile for this executable was not found 错误
今天一大早起来,做ios的开发,发现了一下错误:A valid provisioning profile for this executable was not found 错误的产生是在开发模式下产生的,在生产模式下没有这个问题(我用的是企业证书) 后来网上查了N多资料,PP文件也重新下载来,还是 ...
分类:移动开发   时间:2016-05-11 09:21:51    阅读次数:146
[leetcode] 306. Additive Number 解题报告
题目链接: https://leetcode.com/problems/additive-number/ Additive number is a string whose digits can form additive sequence. A valid additive sequence should contain at least three numbers. Excep...
分类:其他好文   时间:2016-05-10 07:08:05    阅读次数:174
内存管理---内存释放
Linux内存释放函数之间的调用关系如下图所示           hi /*用虚拟地址进行释放*/ void free_pages(unsigned long addr, unsigned int order) { if (addr != 0) { VM_BUG_ON(!virt_addr_valid((void *)addr)); __free_pages(virt...
分类:其他好文   时间:2016-05-08 01:19:38    阅读次数:322
32. Longest Valid Parentheses
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the lo ...
分类:其他好文   时间:2016-05-07 23:49:55    阅读次数:226
LeetCode 36/37. Valid Sudoku/ Sudoku Solver
1. 题目分析36 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 the character ‘.’. A part...
分类:其他好文   时间:2016-05-07 10:06:58    阅读次数:217
leetcode 036 Valid Sudoku
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 the character '.'....
分类:其他好文   时间:2016-05-07 09:56:22    阅读次数:168
65. Valid Number-leetcode-java
【原来在SAE的blog上,都转到CSDN了。。】 65. Valid Number-leetcode-java 发表于 2016/02/10 题目: Validate if a given string is numeric. Some examples: "0" => true " 0.1 " => true "abc" => false...
分类:编程语言   时间:2016-05-07 09:44:05    阅读次数:251
[LeetCode] Design Tic-Tac-Toe 设计井字棋游戏
Design a Tic-tac-toe game that is played between two players on a n x n grid. You may assume the following rules: A move is guaranteed to be valid and ...
分类:其他好文   时间:2016-05-06 21:51:46    阅读次数:228
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