s*******n
发帖数: 305 | 1 来自主题: JobHunting版 - 周末上道题
两位大大， 能不能在多说点， 没太明白。
a 为不可写的， 那就没法多次取max?
b 和 a 有重复吗，每次把b中max和a相同的数的孩子放到b中：
1. b中的max不一定是a中的max呀？怎么保证取到a的kth max?
2. 每次把孩子都放到b中， 会不会overflow, 因为b的size只有k+constant, constant
<
操作完后，就是b.size()+1了？
我的确没有理解， 请多讲讲， 谢谢。 |
|
b*******a
发帖数: 68 | 2 A constant incoming requests, each associated with a unique key, estimate
the total amount of unique requests within a period of time. Memory cannot
hold all the keys. Don't save data on disk. Rough estimation will be fine.
这个感觉是Count-min Sketch，但是具体怎么做呢？Count-min Sketch不保存全部原始
key，
另一个也是 A constant incoming requests, 要求给出过去任意一分钟/五分钟/一小
时/一天/一个月/ 的统计数据，如number of requests, number of unique request,
etc.
这个问题更加Open, 怎么实现比较好呢？ |
|
b*******e
发帖数: 123 | 3 An array A[1...n] contains all the integers from 0 to n except for one
number which is
missing. In this problem, we cannot access an entire integer in A with a
single opera-
tion. The elements of A are represented in binary, and the only operation we
can use
to access them is “fetch the jth bit of A[i]”, which takes constant time.
Write code to
find the missing integer. Can you do it in O(n) time
Inspired by leetcode question, can we figure out 0^1^2^...^n first then do
an xor for each element i... 阅读全帖 |
|
j*********6
发帖数: 407 | 4 想问一下 用java 的 linkedlist 是不是也要定义一个 node 这个class 用来存 <
key, value> pair ?
还有这个linkedlist的remove是constant的吧？ 就是因为加了 hashmap所以变成
constant了？ |
|
C*********r
发帖数: 8 | 5 在读小硕近来收到Amazon的实习offer，现在要选一个大组。我对每一个组都很感兴趣
，但是考虑到毕业后想继续在那里工作，所以求版上各位大大点拨一下哪一个组比较适
合实习呢？
万分感谢！！！！！！
现在有Operations，Marketplace，Retail，Business Development ，Kindle，
eCommerce Services，Amazon Web Services，Platform 可以选
具体介绍:
Operations
The World Wide Operations Team is the engine that drives, fulfills and
delivers the Amazon.com order to the doorsteps of millions of customers.
The people here are constantly faced with challenges involving scalability,
process flow, implementing business logic, opt... 阅读全帖 |
|
C*********r
发帖数: 8 | 6 在读小硕近来收到Amazon的实习offer，现在要选一个大组。我对每一个组都很感兴趣
，但是考虑到毕业后想继续在那里工作，所以求版上各位大大点拨一下哪一个组比较适
合实习呢？
万分感谢！！！！！！
现在有Operations，Marketplace，Retail，Business Development ，Kindle，
eCommerce Services，Amazon Web Services，Platform 可以选
具体介绍:
Operations
The World Wide Operations Team is the engine that drives, fulfills and
delivers the Amazon.com order to the doorsteps of millions of customers.
The people here are constantly faced with challenges involving scalability,
process flow, implementing business logic, opt... 阅读全帖 |
|
w**z
发帖数: 8232 | 7 http://www.7x7.com/WorldDomination#/0
Obvious bias aside, the San Francisco Bay Area is one bad ass region. We
embody ingenuity and create products that people around the world love and
enjoy on a daily basis. You're all very welcome.
Though nothing more than a pen-sized dot on your average globe, a lot goes
down here. Brilliant engineering minds, vibrant recruiting teams, and young
CEOs are becoming a staple in the city—seriously, when else in history has
running a multi-million (sometimes bill... 阅读全帖 |
|
c********l
发帖数: 8138 | 8 个人觉得其实不是Word Ladder II ，也不是那些acceptance rate 最低的题目
而是在constant空间下的Recover Binary Search Tree
Recover Binary Search Tree
Two elements of a binary search tree (BST) are swapped by mistake.
Recover the tree without changing its structure.
Note:
Could you devise a constant space solution?
网上有一个人给出了 modified threaded BST
但压根就没看明白到底是怎么回事，也没有证明该种方法一定能得到正确解
如果能找到解释modified threaded BST原理的Gif就好了。 |
|
|
w*****a
发帖数: 81 | 10 【 以下文字转载自 JobMarket 讨论区 】
发信人: wenniya (wenniya), 信区: JobMarket
标 题: Zuora北京招聘Senior Java Developer, Techops Manager等多个职位
关键字: Java,SAAS,Operation,UI,QA
发信站: BBS 未名空间站 (Wed Jun 18 23:10:25 2014, 美东)
公司简介
我们是Zuora(祖睿科技)， 目前硅谷最热门的SaaS公司。由来自Salesforce和Cisco (
WebEx)的资深SaaS人士创建。
Zuora正改变着世界——Zuora的计费平台通过云计算提供定价、计量、计费服务。
Zuora的使命是为全世界具有在线订用业务的公司提供服务。
仅仅7年，Zuora实现了每年400%的增长，完成了共计13000万美元来自顶级风投的融资
，定义了订阅式经济模式，研发出了卓越的产品——包括Z-Finance、Z-Billing、Z-
Payment、Z-Revenue等产品。
现诚聘Senior Java Devleoper, Technical... 阅读全帖 |
|
a**********0
发帖数: 422 | 11 第二题 我觉得constant是什么意思呢？
假设使用java表示一个整数 整数最大是27... 是个具体的数 也就是说即使按照数字的
位数来算 数字最多也是整数位
所以我觉得 你可以这样
建立一个int【】 长度为10 扫描一次 记录每个数字出现的次数 这个过程就是
constant 为什么 因为位数有上限 然后在循环一次 从后向前构造最大数
尽管看上去像是o（n） 但是n由于java存储的原因是有上限的 比如 int最多不超过100位 |
|
Y******u
发帖数: 1912 | 12 看你们讨论真为你们学位不值，看看这个问题的回复吧
http://www.quora.com/What-do-people-in-Silicon-Valley-plan-to-d
节选一个回答
I joined Google’s software engineering team in 2001 when I was 55 years old
. That’s right, I said fifty-five, as in five five. I was the oldest
employee at Google for the entire four years I was there.
What did I do? I was not an executive… and I was not a manager… I was
simply a software engineer working alongside all my dear colleagues whose
median age was probably 25 years younger than I was. My a... 阅读全帖 |
|
d********w
发帖数: 363 | 13 品味来了。
Basics and Algorithms
The Five-Minute Rule Ten Years Later, and Other Computer Storage Rules of
Thumb (1997): This paper (and the original one proposed 10 years earlier)
illustrates a quantitative formula to calculate whether a data page should
be cached in memory or not. It is a delight to read Jim Gray approach to an
array of related problems, e.g. how big should a page size be.
AlphaSort: A Cache-Sensitive Parallel External Sort (1995): Sorting is one
of the most essential algorithms in... 阅读全帖 |
|
x*******i
发帖数: 28 | 14
我也不知道，他没细说。感觉想要constant memory的话，morris trasversal可以做到
constant memory遍历完整个树，不过他说那个方法不难的。
唉，很努力也，还是没做到bug free |
|
z****1
发帖数: 1103 | 15 Design a data structure to track whether a given number is in a collection.
The structure must be memory efficient, able to house all the numbers
possible with an unsigned long long, alow adding numbers to the set in
constant time, and testing whether a number is in the set in constant time。 |
|
z****1
发帖数: 1103 | 16 testing whether a number is in the set in constant time＂
这个让我感觉要hash。除了hash，啥方式保证search是 constant time？
不过也别被我误导，因为我不知道答案。 |
|
p******z
发帖数: 165 | 17 【 以下文字转载自 Seattle 讨论区 】
发信人: plainxyz (plain), 信区: Seattle
标 题: SDET opportunity in Seattle, 有兴趣的请站内联系！
发信站: BBS 未名空间站 (Thu Jul 23 16:18:24 2015, 美东)
Job Description
Software Development Engineer in Test (SDET)
Full Time
Seattle, Washington
Our Company develops advanced, intuitive, and high-quality products that
drive efficiency, productivity, and
manage logistics at marine and break-bulk terminals around the globe. We’
re seeking a motivated Software Engineer in
Test (SDET), with strong objec... 阅读全帖 |
|
W***n
发帖数: 11530 | 18 Latest Advances in Internal Combustion Engines
Automakers continue to look to the internal combustion engine (ICE) and its
decades of reliable and resilient service when it comes to offering improved
fuel economy and longer engine life.
May 2014, By Stephane Babcock
Even with all the buzz that surrounds hybrids, hydrogen fuel cells, and the
numerous gaseous alternatives, OEMs are still betting on the benefits of the
constantly improving internal combustion engine (ICE). From its humble
beginning... 阅读全帖 |
|
f*********s
发帖数: 1881 | 19 hash的average running time是O(n)。只需要维持n格的hash table，expected
collision机会是1/n，expected table looking time是constant的，那样查找删除每
一个数的expected time是constant的。最终expected running time就是数组的长度 |
|
f*********s
发帖数: 1881 | 20 hash的average running time是O(n)。只需要维持n格的hash table，expected
collision机会是1/n，expected table looking time是constant的，那样查找删除每
一个数的expected time是constant的。最终expected running time就是数组的长度 |
|
b**********5
发帖数: 7881 | 21 Tech startups love millennials. Tasty, tasty millennials who get underpaid,
overworked, churned up and turned into nourishment for venture capitalists.
Millennials are the Soylent Green of the tech world.
As each batch gets mashed up, there’s a long line of new hires eager to be
made into the next meal for the execs and their billionaire backers, as tech
survivor Dan Lyons shows in a scathingly funny new book, “Disrupted: My
Misadventure in the Start-Up Bubble” (Hachette Books).
Lyons became a s... 阅读全帖 |
|
r***s
发帖数: 737 | 22 单链表反转是不可能在 constant time, constant memory 完成的。 |
|
r******8
发帖数: 1486 | 23 lc 原题啊，怎么可能时间constant，还真没见过时间constant的题目？话说有吗？ |
|
f*****m
发帖数: 309 | 24 日，那面试官为啥要我找constant space 的解？我先秒杀majority I , majority II
，问道这题后没任何思路，说了下hash，面试官问我有没有constant space的方法。没
给答案啊，这是被黑了么？ |
|
C**********t
发帖数: 32 | 25 代人发
Make Philips Grow
Philips Research Asia – Shanghai (PRA-S) has been established in Shanghai
since the year 2000. Our focus is on breakthrough innovation, aimed
generating new business for Philips, and to support existing business.
Working with industrial and academic partners, we speed up innovation and
help create technologies that really matter and get adopted. We call this
Open Innovation. We are an integral part of Philips’ international research
program and have extensive collaborations... 阅读全帖 |
|
w*****a
发帖数: 81 | 26 公司简介
我们是Zuora(祖睿科技)， 目前硅谷最热门的SaaS公司。由来自Salesforce和Cisco (
WebEx)的资深SaaS人士创建。
Zuora正改变着世界——Zuora的计费平台通过云计算提供定价、计量、计费服务。
Zuora的使命是为全世界具有在线订用业务的公司提供服务。
仅仅7年，Zuora实现了每年400%的增长，完成了共计13000万美元来自顶级风投的融资
，定义了订阅式经济模式，研发出了卓越的产品——包括Z-Finance、Z-Billing、Z-
Payment、Z-Revenue等产品。
现诚聘Senior Java Devleoper, Technical Operation Manager, Senior QA Engineer
, UI Design Engineer等多个职位
联系方式： s********[email protected]
skype: tracygraduate
www.zuora.com
Senior JAVA Developer
Job Description:
1. Design and develop Zuora’s next... 阅读全帖 |
|
i*****x
发帖数: 10 | 27 Our company is looking for 3-4 full-time qualifying candidates in both back
office and front office
-----------------------------------------
Back office Qualifications (relationship manager):
• Bilingual in Chinese and English is required;
• Self-motivated with positive attitude;
• Ability to work independently without constant supervision;
• Good Communication Skills;
• Previous experience in the Merchant Service industry a PLUS;
Responsibilities:
• maintain... 阅读全帖 |
|
i*****x
发帖数: 10 | 28 Job description
Our company is looking for 3-4 qualifying candidates in both front office
and back office.
-----------------------------------------
Back office (relationship manager)
Qualifications：
· Bilingual in Chinese and English is required, Korean is PLUS;
· Self-motivated with positive attitude;
· Ability to work independently without constant supervision;
· Good Communication Skills;
· Previous experience in the Merchant Service industry a PLUS;
Responsibilities:
• Attracts potent... 阅读全帖 |
|
g*****9
发帖数: 4125 | 29 Unfortunately, one of my PHD degree from MIT is in thermodynamics. (not sure
if that is called 传热 in chinese)
A circulating refrigerant such as Freon enters the compressor as a vapor.
The vapor is compressed at constant entropy and exits the compressor
superheated. The superheated vapor travels through the condenser which first
cools and removes the superheat and then condenses the vapor into a liquid
by removing additional heat at constant pressure and temperature. The liquid
refrigerant goes t |
|
S*A
发帖数: 7142 | 30 I did not use smart drive before. It is like a throttle in the car.
You press it harder, the mower move faster.
Cruise control allow you to pre-set a speed. One you engage the
wheel, it move forward with the constant speed. There is a separate
engage control.
Some people said it is harder to maintain constant speed with
smart drive. Especially on bumpy lawn. Both needs a little bit
get used to if you haven't use it before. |
|
i***e
发帖数: 9429 | 31 和我说的没啥差啊
Rheem 的 62-24084-xx 板子 并没有特别注明，有些板子我记忆里确实有提到如果是"
constant on " , 那也就是意味着系统internal failure， 或者板子本身出问题。
Matthew 一开始和我估计的一样
“Matthew :
The installation instructions don't say but my mind is wanting to tell me
the OK light should either be blinking a code or off when normal operation.
When it is constant on there is an internal fault with the control board.
Try this...”
但是经过一翻互动后发觉不对， 再去查， 然后是：
“Matthew :
correct. I just checked my furnace (it's a UGDG but a 2005 model) The ok
light stays ... 阅读全帖 |
|
s******n
发帖数: 2279 | 32 Both the United States and China are seen as the world’s top industrial
nations. The US has the world’s largest economy whereas China has the world
’s largest growing economy, which, at its current rate, will surpass that
of the US within a few years. However, in the international mathematics and
science testing, the scores of America are falling behind that of China by a
large gap. Critics complain that the education in the US is far behind that
of its other industrial nations, which is not ent... 阅读全帖 |
|
B******1
发帖数: 9094 | 33 1) "比如人口增加后亚裔从100人qualify增加到200人qualify，西班牙裔从50人
qualify变成了60人 qualify"
Based on your hypothesis, the Hispanic population may become more retarded
when years go by, which is absurd. You see, if you look at the sheer
number of increase of the Hispanic population, it probably trumps any
increase in NUMBER for other ethnic groups. Their increase in NUMBER
probably is more than 5 times the increase in NUMBER for Asians. However,
the enrollment of Hispanic students in Ivy league school does not incre... 阅读全帖 |
|
B******1
发帖数: 9094 | 34 1) Based on your hypothesis, the Spanish population may become more retarded
when years goes by, which is absurd. You see, if you look at the sheer
number of increase of the Spanish population, it probably trumps any
increase in NUMBER for other ethnic groups. Their NUMBER probably increased
by at least 5 times from 1991 to 2011. However, the enrollment of Hispanic
students in Ivy league school does not increase. This would be a proof of
discrimination against the Hispanic group, according to th... 阅读全帖 |
|
i*****a
发帖数: 7272 | 35 【 以下文字转载自 Faculty 讨论区 】
发信人: MHP (马后炮), 信区: Faculty
标 题: 关于负面情绪，恰巧收到这个信
发信站: BBS 未名空间站 (Sun Mar 22 09:46:25 2015, 美东)
Monday, March 23, 2015
Responding to Rejection
Dear XXX，
Maybe it's just the rhythms of the semester, but many of you seem to be down
in the dumps. I've been hearing from lots of people who are frustrated by
cranky colleagues' comments, demoralized by rejected manuscripts and grant
proposals, and tired of students' unending complaints. With so much
negativity in our work environ... 阅读全帖 |
|
t*******r
发帖数: 22634 | 36 There exists another thinking-experiment for that ... change
the observer ...
If the observer #2 move in the same speed as the water
(presuming ideal liquid) flows, for observer #2, the water
is in constant and no motion at all, the 2 fishes should
also be constant and no motion at all in the water (assuming
those 2 fishes aren't swimming). |
|
w**d
发帖数: 2334 | 37 well, u need to assume it is constant. o/w, you can vary the rate of going
up - to make the 'average' is still
每绕一圈上升一米. Guess for high school problems, the constant rate is an
implicit assumption.
线。 |
|
t******l
发帖数: 10908 | 38 这个就是 constant rate，只不过是水平面投影的角速度，相对于高度轴投影的线速度
，其比值是 constant rate。 |
|
w*********o
发帖数: 3030 | 39 If you are color blind, you wouldn't try to "guess" other people's skin
color constantly.
If you are not color blind, what you have been doing on this board is to
constantly show what a hypocrite you are and how silly the IDs who actually
agree with you are.
One thing you and your friend are really good at is to shoot yourself on
your own feet.I feel sorry for the ones who actually listen to you.They
might end up doing the same thing. |
|
h*****m
发帖数: 1034 | 40 对于儿童的体重还是要很注意的。有理论认为脂肪细胞数目在青少年期增长并确定，成
人以后细胞数目不变体积会变大。所以，青少年时期长了过多的脂肪细胞，成人以后不
容易控制体重。
google fat cell childhood.
Fat cell number is set in childhood and stays constant in adulthood.
The fat cell theory. You may have heard that a person is destined to become
lean or fat based on the accumulation of fat cells early in life. The fat
cell theory states that during the first two years of life (considered to be
one of the critical periods for fat cell development), there is normally an
increase in fat... 阅读全帖 |
|
a*****g
发帖数: 19398 | 41 By Sharon Brody
-----------------------
SIDEBAR PHOTO AND VIDEO (3 minutes) David Weinstein is retiring early after
teaching first grade at Brookline's Pierce School since 1987. He says he's
stepping down mostly because the data collection associated with education
reform takes time and attention away from teaching the way he believes is
best for children. (Sharon Brody/WBUR)
----------------------
If you're lucky, then at least once you have a teacher who makes all the
difference. My firstborn... 阅读全帖 |
|
t******l
发帖数: 10908 | 42 回到理论上，其实这三个 elevator pitch 都是 Piaget 水杯 -- invariant。
而问题是，Piaget 只测了直线（constant slope）和圆（constant distance to
fixed point）。
而这些的问题是，在去看 Piaget 儿医前好多年里，娃娃蹬个三轮上个坡，这两个
invariant 天天都看见，而且我的的大脑很容易早就自动 prime 出 invariant。即所
谓的 intuitive 而不是 counter-intuitive。
所以 Piaget 学派就没法知道学习的过程里，到底是从 explicit memory 到 implicit
memory，还是反过来，或者根本无所谓。
( |
|
t******l
发帖数: 10908 | 43 但对抛物线而言，这个 invariant 是 constant rate of change regarding slope。
但问题是，抛物线的这个 invariant 是一个 "2nd-order-moving-invariant"，而在训
练以前，我们的大脑不会自动去求导数看到这个 invariant。即所谓的 counter-
intuitive。
更糟糕的是，这个抛物线还有一个 "less important invariant" -- 最高/最低点(
vertex point)。在训练以前，我们的大脑自己被自己 fixate 在 vertex point 这个
less important invariant 上，而 completely ignored the primary invariant --
constant rate of change regarding slope。
所以这个症状，就是我们普通娃通常就一直戆戆地盯这题目里抛物线的最高点（最大的
最明显的玩意儿不是？），20 分钟后一张白卷交上去。换个角度看的话，其实也是自
闭的一种。// run
impl... 阅读全帖 |
|
w*****a
发帖数: 81 | 44 【 以下文字转载自 JobMarket 讨论区 】
发信人: wenniya (wenniya), 信区: JobMarket
标 题: Zuora北京招聘Senior Java Developer, Techops Manager等多个职位
关键字: Java,SAAS,Operation,UI,QA
发信站: BBS 未名空间站 (Wed Jun 18 23:10:25 2014, 美东)
公司简介
我们是Zuora(祖睿科技)， 目前硅谷最热门的SaaS公司。由来自Salesforce和Cisco (
WebEx)的资深SaaS人士创建。
Zuora正改变着世界——Zuora的计费平台通过云计算提供定价、计量、计费服务。
Zuora的使命是为全世界具有在线订用业务的公司提供服务。
仅仅7年，Zuora实现了每年400%的增长，完成了共计13000万美元来自顶级风投的融资
，定义了订阅式经济模式，研发出了卓越的产品——包括Z-Finance、Z-Billing、Z-
Payment、Z-Revenue等产品。
现诚聘Senior Java Devleoper, Technical... 阅读全帖 |
|
r*****t
发帖数: 7278 | 45 one easy way to gain something is constantly write put of silver.
every week, every month.
no over trade but small piece of puts, like 1 or 5 or 10.
if you get your shares of SLV, hold it and write calls for the next weeks,
if you don't good enough, you already gain some money.
let sharks wave this silver market, let's enjoy the free money flow from JP
mongan and FED. relex and enjoy.
This cake is soooo sweet.
no matter up or down, we like a bank, constantly collecting money from Mr JP
morgan un... 阅读全帖 |
|
A********d
发帖数: 52 | 46 http://thewallstreetoperator.blogspot.com/2011/08/case-of-bear-
The Case of a Bear Market ...
For all the hoopla in the stock market, 2011 has been an extremely choppy
market. At this writing, S&P 500 has gone no where since the start of the
year. However the time is finally ripe for a bear break ...
In my last market missive, I talked about some dangerous signs pointing to
market internal deterioration, let's review what has happened since May 15,
2011.
Nasdaq made a nominal high of 2887.75 on ... 阅读全帖 |
|
o**o
发帖数: 3964 | 47 It's not news that N x EFTs decay over time because the instruments they use
can't be gamma neutral, so lose money at constant re-balancing. Before
looking into the math, wanted to check some boundary conditions.
your last equation seems to suggest long and short the same stock (a=-1, b=0
?), the short leg constantly underperform the long? |
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p******r
发帖数: 1279 | 48 debt不是问题，nlsn不是玩概念的，是做快消品数据收集和市场调研的，随经济波动较
小，（是人可以不上facebook,但一定要吃饭拉巴生活吧），revenue稳步增长中。
Revenues for the year grew 8% to $5,532 million, up 6% in constant currency
•Adjusted EBITDA for the year grew 10% to $1,546 million, up 8% in
constant currency
•Adjusted Net Income for the year increased to $590 million from $266
million. Net income for the year was $86 million as compared to $132 million
in 2010. |
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h******t
发帖数: 3858 | 49 http://www.marketwatch.com/story/facebooks-stock-should-trade-f
By Mark Hulbert, MarketWatch
CHAPEL HILL, N.C. (MarketWatch) — Well, then, what should be the price of
Facebook’s stock?
Rather than endlessly rehashing the events that have taken place over the
last week, it is this question that investors should be asking. Surprisingly
, however, few are doing so.
And yet, courtesy of a just-released study, calculating a fair price for
Facebook’s stock isn’t as difficult as it might otherwise seem... 阅读全帖 |
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d**********0
发帖数: 13081 | 50 http://www.theverge.com/2015/3/9/8164645/apple-watch-battery-li
Battery life is probably the single biggest question surrounding the Apple
Watch (after its full range of prices, of course). Now, we're finally
getting an answer — Apple has just announced its first wearable will get
about 18 hours of battery life over a normal day. CEO Tim Cook said that
amount of time "works for most people." What we haven't heard yet are more
detailed battery specifications, such as how long the Apple Watch will... 阅读全帖 |
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