b******y 发帖数: 139 | 1 Anyone can provide some suggestions on learning Java quickly? I hope to get
feet wet on Java using one week. Thanks in advance. |
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w******g 发帖数: 67 | 2 【 以下文字转载自 JobHunting 讨论区 】
发信人: wyizhang (MM), 信区: JobHunting
标 题: 哪位大写给说说 何时用 merge sort, 何时用 heap sort, 何时用 quick sort?
发信站: BBS 未名空间站 (Mon Aug 23 19:59:19 2010, 美东)
刚开始看书,理解不够深刻,哪位大侠给科普一下。
1. 这三个算法都平均复杂度都是 (nlgn), 该怎么选择用哪一种算法呢?
2. 看到以前有例子说n非常大的话用merge sort,几台机器分别sort,然后再merge,
这是为什么
呢?merge sort 不是需要而外的空间~n 吗?这时候用quicksort 会不会好一些?
多谢。 |
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X****r 发帖数: 3557 | 3 一般来说quick sort就好,只有在要保证最坏情况也是O(n*log(n))下才用heap sort。
merge虽然需要O(n)的额外空间,但是并不需要这个空间同时在内存里。换句话说
它的输入输出都是顺序读写的,而不是随机读写的。
sort? |
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z****e 发帖数: 2024 | 4 list, forward backward access: merge sort
vector, random access: quick sort
right? |
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i****n 发帖数: 42 | 5 Please recommend book for Java learning from beginner to advanced level very
quickly?
Thank you very much. |
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w**z 发帖数: 8232 | 6 quick sort 很容易写吗?这种算法,只要知道意思,就行了。真当场写出来又如何?
太大 |
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w**z 发帖数: 8232 | 7 quick sort 很容易写吗?这种算法,只要知道意思,就行了。真当场写出来又如何?
太大 |
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k*******n 发帖数: 190 | 8 DEV 是什么意思? SR DEV 是什么?
比 quick sort 还难吗?
不写难道就不能找工作了? |
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c********n 发帖数: 1577 | 9 我想问一下 2009 quick book,一个cdkey,我不可以在公司装到4个电脑里,一个主机
,三个sales机器,然后进行联网 inventory update什么的 |
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c********n 发帖数: 1577 | 10
不能把?我以前公司quick books都可以联网的。。 |
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k**t 发帖数: 44 | 11 Read the ie.txt under IE501 installation.
it was said that if you want the quick lauch , you
need to uninstall IE5.01 first and then install
IE4.01 sp2 and install 5.01 again. |
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l******a 发帖数: 42 | 12 I am posting this job opportunity for my friend. Please contact the company
directly.
Quick growing finance processing firm looking for Part time to Full time
worker
1) Finance Outscoring Firm, located on Longisland, NY , with an Office
in China
2) Accounting or Finance Degree is required
3) Fluent in English, Writing and Speaking
4) Accounting/bookkeeping experience is preferred
5) Can committed 2 – 3 days a week, with potential become full time
employee
6) H1B opportunity
Pl... 阅读全帖 |
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e*******e 发帖数: 342 | 13 最近用quick-change的方法构建library,测序后发现在靶向的位点都有突变,但是在
该位点后面都有多出来的引物重复序列。
我所使用的方法及引物的设计是按照Stratagene的QuickChange Site-directed
mutagenesis kit来做的,用的序列完全匹配的一对引物,突变位点在引物的中间。本
来用的是Phusion,后来换成Pfu,结果一样。
不知道有没有这方面的高手,可以分享一下经验。
谢谢! |
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d*****r 发帖数: 45 | 14 我们一直用 Stratagene's QuikChange "XL" Mutagenesis Kit 做single mutaion,
最近想试试看别的pfu,发现pfu啊,dNTP啊什么的都可以换掉
但是 stratagene kit里的 "quick solution"还是很有必要加的
说明书里没有写这个buffer成份是什么
google了一下有人猜就是pure DMSO,不知道真的假的
请问有人知道吗?谢谢! |
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y*****5 发帖数: 567 | 15 This quick buffer is not necessary at all. You do not need to add it to your
reaction. |
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k***i 发帖数: 662 | 16 August 8, 2007
Toxic Substances
Quick Chemical Screening
EPA taps pesticides for its first round of high-throughput testing
Cheryl Hogue
Hundreds of pesticides that have already undergone traditional toxicity studies will be among the first chemicals run through rapid computer tests, EPA announced on Aug. 2. The program is a prelude to a much wider effort by the agency to use computer-assisted toxicity testing.
EPA
EPA's National Center for Computational Toxicology,based in Research Triangle Par |
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n**2 发帖数: 5 | 17 quick bird遥感卫星图片在哪里可以下载看看置顶区域时间内的图片 |
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J***y 发帖数: 133 | 18 Just want to ask you guys a quick question: What about the jobhunting in
polymer synthesis? And what about the jobhunting in chemical engineering?
Thank you guys for your replies! |
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s*******1 发帖数: 40 | 19 【 以下文字转载自 CS 讨论区 】
发信人: sailor321 (sailor), 信区: CS
标 题: a quick question about integer programming
发信站: BBS 未名空间站 (Thu Jan 25 00:05:52 2007)
Hi,
If I want to solve a integer programming with several thousand of
constraints,
which software will be good for solving this problem?
Thanks! |
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m***l 发帖数: 267 | 20 【 以下文字转载自 Computation 讨论区 】
发信人: moral (moral), 信区: Computation
标 题: Any quick solution for this equation in Matlab?
发信站: BBS 未名空间站 (Mon Mar 8 18:46:15 2010, 美东)
X and Y are function of x and t. Thanks |
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l***i 发帖数: 38 | 21 Thanks for the suggestions. It helps. Now I have another quick question. I was
wondering whether I can submit the job right after I modify the dimension of
my model or I have to first mesh it again? Thanks!! |
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M**1 发帖数: 327 | 22 If anyone want to quick review KN before exam, please mail to me.
Plan to finish KN for complete IM, partial OB/Gyn, Surgery in 4 weeks.
Prefer: ppl plan to take exam in 1 or 2 months. 5h/night Mon-Sat.
Thanks. |
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u*********n 发帖数: 93 | 23 looking for step 3 study partners to review MTB 3 quickly, prefer early bird
, 6-7:30am or 9-10:30pm, est time. please message me or skype me usmleforfun
if interested. thx. |
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n**********9 发帖数: 120 | 24 This week: Very Quick review
Friday morning 8 to 10am, Saturday and Sunday 7 to 9pm(est)
Skype: newworldfirst |
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d*g 发帖数: 116 | 25 Just show a quick INFORMAL overview of RN Green Card Documents. This is a zz
from a pdf file.
Please comment and I will try to revise it.
1. (Specific Information Sheet as required by the lawyer)
2. Copy of Passport.
All pages containing alien personal data, visas and I-94 (front and back).
3. Complete Professional Resume or Curriculum Vitae (CV).
4. Copy of Official name change(s) (if any).
5. Copy of Marriage Certificate (if any).
6. Copy of Certificate of Citizenship (If not born in countr |
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l*******l 发帖数: 204 | 26 to find your NCLEX test result quick and free.
In the nursing board of your state, search the license by your name. If you
pass, you should find it.
Good luck |
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m*****5 发帖数: 438 | 27 有没有考完NAPLEX用过ProntoPass quick review cards? 有意出售者请站内联系,谢
谢。 |
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j**g 发帖数: 37 | 28 If you could answer one very quick question I'd appreciate it - this takes no
thought, if you do it, do it instantly:
Question: When we think do we look up or down?
REPLY NOW with either UP or DOWN
Thanks |
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j**g 发帖数: 37 | 29 Thanks to all of you who responded to my earlier quick question.
Here's another (the last) - findings, etc. in 2 days:
If someone asks us a question for which we have to think - e.g.,
"If a car is traveling at 90 m/hour how far will it travel in 1.5
hours?", does the direction in which we change our eye direction
(up/down, etc) depend on whether we can see the speaker's face or
not?
ANSWER - YES or NO - If yes, please explain |
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w******g 发帖数: 271 | 30 Hi, Da Ge Da Jie Men,
I have a quick question in R language.
That when I load some data, like"1000", it is a string rather than number,
how am I supposed to turn this into a number?
I tried as.double(), but errors happen. Don't know why.
Can you guys help me? |
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q**j 发帖数: 10612 | 31 the problem with SAS is that you can always call those guys for customer
support. so you do not need this kind of quick book.
business |
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b*****e 发帖数: 223 | 32 有一些对数据做 decoding 的程序,因为数据比较大,一个个 run 要等。我想把程序
写好,然后用另外的程序去一个个 incl 这些 decoding 程序(有没有更好的方法?)
,晚上我睡觉的时候 run 节省时间。但是我不想因为某个程序出错就 stop 住了,因
为他们之间是无关的。请问怎么写啊。最近比较缺觉,白天想不出来就指望晚上爬上了
问个 quick answer。 |
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w*******y 发帖数: 60932 | 34 I have been wating for a price break on these for months (regularly $50).
Our WS B&M store would not price match, so I went ahead and ordered online
for my daughter's birthday. It is still higher than I wanted to pay, but she
has been drooling over these forever. According to our local store, this is
one of the stores best sellers and it garners rave reviews from the store's
customers.
To get the discount, search Item #: 9-1742345
Extra sticks are also discounted: Zoku Quick Pop Sticks, Set of 6 |
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w*******y 发帖数: 60932 | 38 Winco has the 24 oz canister of McCann's Quick Easy Steel Cut Oatmeal on
sale for $4.28. This is the best oatmeal out there and you don't have to
spend an hour cooking it. Way better than any of the instant kinds and
probably much healthier.
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