w****o
发帖数: 2260 | 1 【 以下文字转载自 JobHunting 讨论区 】
发信人: winhao (勇敢的人), 信区: JobHunting
标 题: 谁给说说juggling algorithm里面的gcd
发信站: BBS 未名空间站 (Sun Apr 1 23:18:04 2012, 美东)
数组大小为N, 要shift by k positions
有关的讨论在：
http://www.mitbbs.com/article_t/JobHunting/32080185.html
这个juggling algorithm,其实就是把数组分成了gcd(N, k)个set,在每个set里的数可
以通过k跳，互相到达，所以他们之间就可以交换。
我的问题是，如何从数学上证明这gcd(N, k)个set之间是没有任何的交集？同时这gcd(
N, k)个set的并集正好就是整个数组？
是不是要从 k modulus N方面来着手？
谢谢！ |
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w****o
发帖数: 2260 | 3 数组大小为N, 要shift by k positions
有关的讨论在：
http://www.mitbbs.com/article_t/JobHunting/32080185.html
这个juggling algorithm,其实就是把数组分成了gcd(N, k)个set,在每个set里的数可
以通过k跳，互相到达，所以他们之间就可以交换。
我的问题是，如何从数学上证明这gcd(N, k)个set之间是没有任何的交集？同时这gcd(
N, k)个set的并集正好就是整个数组？
是不是要从 k modulus N方面来着手？
谢谢！ |
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K****D
发帖数: 30533 | 4 可能juggle的话，还有点戏，否则physically impossible.
欧就算了，偶的鼠标技能太差。 |
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P*****a
发帖数: 392 | 5 http://www.nytimes.com/2002/07/15/international/15WEB-CHIN.html?pagewanted=1
China Juggles the Conflicting Pressures of a Society in Transition
By CRAIG S. SMITH
Stability in China can seem reassuringly deep, anchored by the inertia of an
older generation worn out from decades of politically driven chaos and a
younger generation transfixed by the promise of material gain.
But Chinese society is still only midstream in its difficult transition from a
centrally planned economy to a market driven o |
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b********n
发帖数: 38600 | 6 http://www.tomdispatch.com/blog/176003/
Delusionary Thinking in Washington
The Desperate Plight of a Declining Superpower
By Michael T. Klare
Take a look around the world and it’s hard not to conclude that the United
States is a superpower in decline. Whether in Europe, Asia, or the Middle
East, aspiring powers are flexing their muscles, ignoring Washington’s
dictates, or actively combating them. Russia refuses to curtail its support
for armed separatists in Ukraine; China refuses to abandon its... 阅读全帖 |
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y***y
发帖数: 224 | 8 Yodle is looking for software engineers to join the team. Take a look at
our new puzzle below.
More details on the team can be found here : http://www.yodle.com/careers/job-details/senior-software-engineer-new-york-ny/
Look forward to hearing from you
Aviv
Juggle Fest
Many developers here at Yodle are avid jugglers. To celebrate their prowess
we are organizing a Yodle Open JuggleFest, but we need your help planning it
. There will be thousands of participants split into teams. Each team will
at... 阅读全帖 |
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b********d
发帖数: 393 | 9 看了50遍但是对要求还是不解，求看得懂的解释一下。
要求写一段程序给所有juggler根据个人的意向，个人（H，E，P）的特点和每个组对（
H, E，P)值的要求最佳化分组。但是这个最佳化的条件我没看懂呀，尤其是这句话：In
fact we want to match jugglers to circuits such that no juggler could
switch to a circuit that they prefer more than the one they are assigned to
and be a better fit for that circuit than one of the other jugglers assigned
to it.
看不懂呀。。。
谁给中文解释一下。拜谢了先。。
全文如下：
2 - Juggle Fest
Many developers here are avid jugglers. To celebrate their prowess we are
organizing a Yodle Open JuggleFest, b... 阅读全帖 |
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e******i
发帖数: 106 | 10 是最新的一道题，我题目都没有看懂 >_<|||
题目有点长，有耐心的同学就慢慢看,我有问题的地方我用《 》quote
“Juggle Fest
Description:
Many developers here at Yodle are avid jugglers. To celebrate their prowess
we are organizing a Yodle Open JuggleFest, but we need your help planning it
. There will be thousands of participants split into teams. Each team will
attempt to complete a juggling circuit consisting of several tricks. Each
circuit emphasizes different aspects of juggling, requiring hand to eye
coordination (H), endurance (E) and pizza... 阅读全帖 |
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b*********s
发帖数: 6757 | 11 我知道有人自己做沙袋的juggling balls, 后来卖的很火。。。 你的情况相似吧。 不
过那人对juggling很有passion, 出发点是做出最有手感的juggling ball... 你这个有
些难吧。 |
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l****z
发帖数: 29846 | 13 More than one in three of the unemployed workers in several of the largest U
.S. states have been out of a job for more than a full year.
Across the country, long periods of unemployment have been more prevalent
recently than during previous recoveries going back to the 1940s.
During 2010, long-term unemployment was disproportionately a problem in New
Jersey, Georgia, Michigan, South Carolina, North Carolina, Illinois and
Florida, according to Labor Department data expected to be released later
... 阅读全帖 |
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w***y
发帖数: 6251 | 14 我昨天刚研究了这个题目, 别人跟我说programming pearl上有, 我看了半天看懂了
juggling怎么做, 但是不太懂怎么证明orz
Juggling的方法, 如果gcd(N,k)是1, 我看的很晕, 如果gcd(N,k)大于一, 因为可以画
出图来, 我就想的明白 |
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b*******s
发帖数: 1175 | 15 我正想发个贴的。昨晚娃问我会不会ball juggle. 我拿了俩网球试了下不行。拿
youtube看了下，然后花了20多分钟学会了juggle two balls。我邻居好像说过他从不
会到会只需10分钟。估计他手眼协调比我好多了。各位试过没？今晚打算叫我娃看她要
多久学会？ |
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t******f
发帖数: 2109 | 16 5 balls we juggle
Image life as a game in which you juggle in the air five balls named work,
family, health, friends, and spirit. As you endeavor to keep them all in the
air, you will soon realize that work is a rubber ball, and if you drop it,
it will bounce back. The other four balls, however, family, health, friends,
and spirit are made of glass. Drop one of them, and the ball is irrevocably
scuffed, marked, nicked, damaged, or even shattered, never to be the same.
You must understand this fa... 阅读全帖 |
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w***n
发帖数: 9040 | 17 去年芝加哥马拉松，我当志愿者，看见一个人，扔着三个球到终点了。。。
亮点VFF |
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y**********u
发帖数: 6366 | 18 我去年在suntrust national marathon也看到了
挺流畅的 |
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u*********s
发帖数: 2077 | 19 他似乎也是heel landing啊， 我以前一直以为穿VFF的都是
forefoot landing.... 不过看你和核桃妹的VFF的脚跟也还是
磨损的, 并不是完全的forefoot landing.... |
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M*****a
发帖数: 2054 | 20 forefoot landing的龟速屌丝飘过。。。 |
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u*********s
发帖数: 2077 | 21 我似乎昨天把左脚跑伤了......决定还是暂时弃用VFF了...
你后来牛顿穿的咋样？ |
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M*****a
发帖数: 2054 | 22 不错啊
不过最近都是龟速穿hs4, 1mile 12分钟。。。 |
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u*********s
发帖数: 2077 | 23 很快啊， 我昨天14分的pace, 心跳140多.... |
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w***n
发帖数: 9040 | 26 自我感觉是midfoot landing。
刚穿VFF初始阶段跑快了，动作变形了，overstride了变成heel landing。
特别是去年9月11日首半马，有几张照片明显的overstride heel landing。
现在应该form好一些了。 |
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a*******h
发帖数: 580 | 28 小人儿終于進入文思泉涌期 :)
非常感謝大家的提醒，上次我說給娃晚上拼字啥的，大家都說浪費時間，後來我們就練
習寫故事。剛開始的時候還要咬筆桿，要我幫忙想的，不過也的確熬出了幾小篇她自己
很滿意，堅持要貼冰箱上的"大作"。寫給santa的信也非常有理有節，哄得我們家冤大
頭心甘情願的掏了三百大洋替她買了輛車。 :P
anyway, 昨天開學第一天，拿回來的第一分作業，有一頁是要她們畫一隻猴子，寫一個
故事。我還在那裡琢磨，啊，猴子有長長的尾巴等等顯而易見的fact,人家已經迫不及
待的說I have SO MANY ideas,根本懶得跟我羅嗦，就開始奮筆急書/畫，畫了猴子，樹
，好幾個彩色球，和一個紅色大帳篷，然後文曰：這是我的愛猴blah blah blah, 他在
juggle balls。等他juggle完ball了，他會爬上樹去。（原文實在不記得了，反正就是
那麼個意思） 後來還有好多泉涌出來的ideas, 無奈只有一頁紙，她只好頹然等待下一
周的寫作作業。
再次感謝大家的提醒，寫文章比拼字好玩太多了，而且發現她居然也是個有想象力的小
盆友，不是一個小小的學習機器。雖然跟寫作... 阅读全帖 |
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W*******a
发帖数: 1769 | 29 别的国家都是速度越来越快，价格越来越便宜，美国是反着来
AT&T to cap data usage for DSL customers
By Dow Jones Newswires-Wall Street Journal
Posted today at 5:51 a.m.
AT&T Inc. said it would begin to cap DSL data usage for its customers
and begin to implement charges for anyone who goes over the limit.
The Dallas telecommunications giant said that customers who went over a
limit of 150 gigabytes of data a month three times would be charged $10
for every extra 50 gigabytes of data they consume. Customers on its
higher-end ... 阅读全帖 |
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g*********o
发帖数: 4653 | 30 自由派嘛，本来就不喜欢受束缚，
所谓的原则、底线对他们来说什么都不是
这样，他们的思维可以飘忽不定，
独立思考对他们来说太难了，
能让他们做到“不飘忽不定、不有奶就是娘”就很不错了
今天在当地小报上看到一则新闻，不知道是不是因为
米帝也意识到这些文人、艺术家容易坏事，想着法子把他们招安呢？
How many hours would you spend painting to pay off a surgery? As part of a
new program in the south Bronx, artists can paint, dance or sing to their
heart’s delight, all to offset hospital bills.
The Lincoln Art Exchange, launched this month at the Lincoln Medical and
Mental Health Center, offers struggling New York artists without health
insurance a b... 阅读全帖 |
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t******g
发帖数: 462 | 31 You mean he spend 3 days for the initial version? how is it related to its
current valuation? The value is driven by projected future cashflows no
matter how much the game production cost is.
For the money you buy Flappy Bird company you also got platform that
produced the top #2 game called Super Ball Juggling, maybe future ones in
the same tree. How is it different from success stories such as angry bird
etc. |
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b********n
发帖数: 38600 | 32 Western Women Confirmed For Being Unfaithful Whores
http://www.news.com.au/national/women-more-promiscious-at-sex-t
YOUNG women are becoming more promiscuous, with more sexual partners than
men.
By the age of 21 they have had sex with an average of nine lovers - two more
than their male partner.
Today's young women have been brought up on the bold and brazen bedroom
antics of Carrie Bradshaw (Sarah Jessica Parker) and her friends, the Daily
Mail newspaper in the UK reports.
The "anything goes" s... 阅读全帖 |
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b********n
发帖数: 38600 | 33 Listed below are 20 completely ridiculous college courses being offered at U
.S. universities. The description following each course title either comes
directly from the official course description or from a news story about the
course…
1. “What If Harry Potter Is Real?” (Appalachian State University) – This
course will engage students with questions about the very nature of history.
Who decides what history is? Who decides how it is used or mis-used? How
does this use or misuse affect us? How ... 阅读全帖 |
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b********n
发帖数: 38600 | 34 After concluding, for instance, that China had taken advantage of U.S.
entanglement in Iraq and Afghanistan to advance its own strategic interests
in Southeast Asia, Obama and his top advisers decided to downgrade the U.S.
presence in the Middle East and free up resources for a more robust one in
the western Pacific. Announcing this shift in 2011 -- it would first be
called a “pivot to Asia” and then a “rebalancing” there -- the president
made no secret of the juggling act involved.
“After a de... 阅读全帖 |
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T**********e
发帖数: 29576 | 35 小黑才24岁，一人带3个小孩，靠开卡车挣钱，没有犯罪史，经常和街区的毒贩斗争，
为阻止毒贩在前后街院子乱窜，自己修了个篱笆，把毒贩惹恼，一天在家门口被毒贩枪
决了。
Police call murder victim Kendal Fenwick a 'model citizen'
Baltimore's latest homicide victim was raising three children in Park
Heights. To make their home safe from drug dealers, he was building a fence
around the property.
On Monday night, with chicken nuggets and french fries on the stove for the
kids, 24-year-old Kendal Fenwick stepped outside and was gunned down in the
street. When the children heard the gun... 阅读全帖 |
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h*h
发帖数: 27852 | 36 Why Can't Islam be Reformed?
By Ali Sina
Dear Mr. Sina,
I am a Muslim woman living in the USA I read some of your articles and
totally agree with you on many points.
I am still a Muslim but at the same time I hold rather peculiar positions on
many points.
There are five pillars of Islam and six pillars of faith that cannot be
modified. That's all. The rest can be negotiated and must be modernized.
Islam is doomed and the fate of the Church of England awaits it. But
Anglicans didn’t leave C... 阅读全帖 |
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d***e
发帖数: 3497 | 37 http://wtop.com/government/2017/02/the-latest-acting-head-of-immigration-and-customs-ousted/
WASHINGTON (AP) — The Latest on President Donald Trump (all times local):
8:15 p.m.
Ivanka Trump is celebrating Chinese New Year at the Chinese Embassy in
Washington.
President Donald Trump’s daughter walked into a reception for the holiday
holding hands with her daughter. She was accompanied by Chinese Ambassador
to the U.S. Cui Tiankai.
They were instantly surrounded by a swarm of other guests who pull... 阅读全帖 |
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D**********r
发帖数: 602 | 38 Word Offensiveness
1. felch 83% (click to vote)
2. cunt 83% (click to vote)
3. Alabama hot pocket 83% (click to vote)
4. skullfuck 83% (click to vote)
5. cum dumpster 82% (click to vote)
6. Fucking hell 82% (click to vote)
7. cock-juggling thunder cunt 82% (click to vote)
8. rusty trombone 82% (click to vote)
9. blumpkin 82% (click to vote)
10. Cleveland Steame... 阅读全帖 |
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G****e
发帖数: 1912 | 39 一堆不认识的词，
1. felch 83% (click to vote)
2. cunt 83% (click to vote)
3. Alabama hot pocket 83% (click to vote)
4. skullfuck 83% (click to vote)
5. cum dumpster 82% (click to vote)
6. Fucking hell 82% (click to vote)
7. cock-juggling thunder cunt 82% (click to vote)
8. rusty trombone 82% (click to vote)
9. blumpkin 82% (click to vote)
10. Cleveland Steamer 82% (... 阅读全帖 |
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m*******e
发帖数: 1598 | 40 BY TINA AMIRTHA8 MINUTE READ
This story contains interviews with Christian Kästner, assistant
professor at Carnegie Mellon University; Amy Hirotaka, state policy and
advocacy manager at Code.org; and Janet Siegmund, researcher at the
University of Passau.
In order to expose more students to computer science, 17 states have passed
legislation to create basic math and science requirements in the curriculum,
rather than count them as electives. But lawmakers in Texas have made
computer program... 阅读全帖 |
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l********k
发帖数: 14844 | 41 或者给普林校报投稿，说a postdoc who can't juggle is not a good postdoc? |
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M******a
发帖数: 6723 | 42 http://cn.nytimes.com/china/20181204/china-films-movies-hengdian/dual/
Epic Battles, Palaces and Concubines: A Chinese Studio’s Vast World of
Fantasy
STEVEN LEE MYERS
2018年12月4日
横店影视城是世界上最大的户外影视制作基地。
横店影视城是世界上最大的户外影视制作基地。 Lam Yik Fei for The New York
Times
HENGDIAN, China — If you are going to make a movie in China today about
ancient warriors defending a mythical kingdom or a partisan resisting the
Japanese occupation in the 1930s, or involving any variation of that staple
of China’s entertainm... 阅读全帖 |
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T****t
发帖数: 11162 | 43 美帝右派已经把这看成有利于中国人的提案了。 所以这下提案根本通不过的。
https://cis.org/North/View-Left-HR-1044-Trumps-Tax-Bill-Gift-Haves
View from the Left: HR 1044 is – like Trump’s Tax Bill – a Gift to the
Haves
FacebookTwitterRedditLinkedInEmailCopy LinkPrint
By David North on July 10, 2019
As a dyed-in-the wool, life-long, New Deal Democrat, I am equally opposed to
the GOP-backed Trump Tax Law as I am to the Democrat-backed HR 1044, the so
-called "Fairness for High-Skilled Immigrants Act of 2019", which seeks to
damage our ... 阅读全帖 |
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s***n
发帖数: 2366 | 44 从一个好玩儿的开始
http://finance.yahoo.com/news/pampers-celebrates-babies-unique-
CINCINNATI--(BUSINESS WIRE)--
Did you know that a cruising baby in one day can take as many steps as a
marathon runner in a race?1 The efforts that babies go to in order to
overcome everyday challenges – from learning to crawl, walk or balance, to
pulling themselves onto a chair or even a step – are truly world class in
their effort and determination. In celebration of these amazing feats that
babies undertake each and eve... 阅读全帖 |
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g********d
发帖数: 4174 | 45 By: Michelle Garcia
Mon, 2012-04-09 16:42
http://www.shewired.com/lifestyle/2012/04/09/want-better-work-l
Facebook COO Sheryl Sandberg says gender inequity doesn't only exist at work
, but also at home -- reason enough for more women to simply marry other
women to their heart's content.
"In America, if a couple works full-time, the woman does three times the
amount of childcare and two times the amount of house care the man does, and
that's if they both work full time," she said according to Jez... 阅读全帖 |
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l****z
发帖数: 29846 | 46 Many big public companies are likely to report strong second-quarter profits
, but that isn't the story on Main Street, where small businesses are
grappling with jittery customers, rising costs and tight credit.
Small business owners are struggling to get enough loans to grow their
businesses or hire people, even as they face rising commodity prices, WSJ's
Sarah Needleman reports. (Photo: AP Photo.)
The owners of many small businesses say economic uncertainty and
inflationary pressures have led ... 阅读全帖 |
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l****z
发帖数: 29846 | 47 The Wall Street Journal
23 Feb 2012
Investigators probing the collapse of MF Global are scrutinising two money
transfers made during the securities firm's final days in an effort to
uncover what happened to $1.6bn in missing customer funds.
Investigators probe cash moves at MF Global
Federal regulators at the Commodity Futures Trading Commission and the US
bankruptcy trustee for MF Global's brokerage unit are examining two separate
transfers from customer accounts, including a previously undiscl... 阅读全帖 |
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l****z
发帖数: 29846 | 48 After graduating from Brown University in 2009 with a bachelor’s degree in
comparative literature and completing a Fulbright scholarship in Brazil,
Cassie Owens was left with a few dollars on her stipend and no job in sight.
So, Ms. Owens returned home to her mother in Philadelphia.
“I moved back home pretty much for lack of money and prospects,” she says.
Owens’s cousin, Evon Burton, who also returned home after graduating from
Morehouse College in 2009, adds, “The choice is to go out and be in... 阅读全帖 |
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l******a
发帖数: 3803 | 49
Biden will become a con artist juggling a chain. |
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l****z
发帖数: 29846 | 50 Roger Ailes: 'Fox Has Won the Cable News Wars'
Roger Ailes, the CEO and Chairman of Fox News, has declared victory over his
left-wing competitors, CNN and MSNBC. In a lengthy interview with The
Hollywood Reporter, Ailes points out correctly that MSNBC and CNN have given
up on and are moving away from the news business: "That means Fox has won
the cable news wars."
Indeed it does.
"MSNBC has [already] announced they're out of the news business," Ailes
added. "They have several different hosts, bu... 阅读全帖 |
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