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OCP试题解析之053-17 CONFIGURE CONTROLFILE AUTOBACKUP ON
17.You configure AUTOBACKUP to ON in an RMAN session. When will RMAN back up the control file? (Choose all that apply.) A. When you run an RMAN BACKUP command B. When you run an RMAN ALLOCATE comma...
分类:其他好文   时间:2014-08-28 00:53:58    阅读次数:189
Jump Game II <LeetCode>
Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximu...
分类:其他好文   时间:2014-08-28 00:47:28    阅读次数:263
三目运算符不易发现的错误
System.Threading.Thread t=null;string message = "I'm cookie and " + t == null ? "You're nicky" : "";请问最后message是啥?看仔细奥!给出一个运算符优先级表吧。优先级运算符名称或含义使用形式结合方...
分类:其他好文   时间:2014-08-27 23:19:08    阅读次数:227
HDU 4027 Can you answer these queries? (线段树)
题意: 给出一排敌军的血量,每次攻击都能将范围内的敌军血量变为原来血量的算术平方根(下取整),并询问范围内敌军的血量和。 分析: 显然的线段树,但是似乎不太好设计lazy标记啊,我们想一想算术平方根,sqrt(1)=1,且64位整数范围内最多6次就变到1了,那么只要区间内的数都为1,我就不用更新这个区间了,所以每次更新都更新到叶子结点,维护区间和就行了。数据里没有0,不过X>Y这种trick有意思吗?...
分类:其他好文   时间:2014-08-27 20:36:58    阅读次数:266
UVA - 1435 Business Cards (数论)
Description Running a paper shop is not an easy job, especially with harsh customers. Today they brought their own rectangular sheets of paper, asking you to cut it into rectangular business cards ...
分类:其他好文   时间:2014-08-27 18:52:38    阅读次数:314
LeetCode 44 Jump Game II
Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal i...
分类:其他好文   时间:2014-08-27 18:45:28    阅读次数:228
【中英对照】【EntLib6】【Unity】实验1:使用一个Unity容器
Lab 1: Using a Unity Container 实验1:使用一个Unity容器Estimated time to complete this lab: 15 minutes 估计完成时间:15分钟 Introduction 介绍In this lab, you will practic...
分类:其他好文   时间:2014-08-27 18:16:38    阅读次数:490
【LeetCode】- Valid Number(有效数字)
[ 问题: ] Some examples: "0" => true " 0.1 " => true "abc" => false "1 a" => false "2e10" => true Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before implementing one....
分类:其他好文   时间:2014-08-27 16:43:58    阅读次数:177
Rotate Image
You are given an n x n 2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?思路:对于matrix[i][...
分类:其他好文   时间:2014-08-27 16:06:57    阅读次数:179
vim中的缩进
# 缩进 # 缩进的设置 1. autoindent (ai) > Copy indent from current line when starting a new line (typing in Insert mode or when using the "o" or "O" command). If you do not type anything on the new...
分类:其他好文   时间:2014-08-27 13:16:38    阅读次数:213
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