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[leetcode]Gray Code @ Python
原题地址:https://oj.leetcode.com/problems/gray-code/题意:The gray code is a binary numeral system where two successive values differ in only one bit.Given a...
分类:编程语言   时间:2014-06-16 07:42:27    阅读次数:242
【Leetcode】Unique Paths
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either down or right at any point in time. The robot is trying to reach the...
分类:其他好文   时间:2014-06-15 19:28:54    阅读次数:246
[LeetCode OJ] Best Time to Buy and Sell Stock I
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2014-06-13 15:55:47    阅读次数:273
Remove Duplicates from Sorted List
题目 Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 1->1->2, return 1->2. Given 1->1->2->3->3, return 1->2->3. 方法 遍...
分类:其他好文   时间:2014-06-11 00:41:44    阅读次数:207
【leetcode】Gray Code
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...
分类:其他好文   时间:2014-06-10 19:38:39    阅读次数:199
Unique Paths
题目 A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either down or right at any point in time. The robot is trying t...
分类:其他好文   时间:2014-06-10 18:43:37    阅读次数:254
【leetcode】Valid Palindrome
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Panama" is a palindrome. "race a car" is no...
分类:其他好文   时间:2014-06-10 18:36:29    阅读次数:193
ORA-00257: archiver error. Connect internal only, until freed
今天早上一个同事说一个系统的定时备份EXP出问题了,异常内容有如下信息:ORA-00257: archiver error. Connect internal only, until freed初步判断是归档日志存放的路径空间不足了。登陆服务器,df -h 检查空间使用情况,发现归档路径下目录空间确...
分类:其他好文   时间:2014-06-10 16:20:22    阅读次数:243
DBMS_RLS包实现数据库表行级安全控制
DBMS_RLS 是实现数据库表行级别安全控制的,这个包包含精细访问控制管理接口,这个接口是用来实现VPD(Virtual Private Database),虚拟私有数据库。DBMS_RLS只能在ORACLE的企业版(Enterpris Edition Only)本才可以用。...
分类:数据库   时间:2014-06-10 14:24:09    阅读次数:315
VmwarePlayer+Ubuntu14 samba服务器搭建
Vmware Player添加网络连接, 选择“Host-only”:查看网卡ip=192.168.245.132:安装samba图形管理界面:#sudo apt-get install system-config-samba启动samba图形管理界面:#sudo system-config-sam...
分类:其他好文   时间:2014-06-10 11:21:57    阅读次数:257
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