r*********r
发帖数: 3195 | 1 because you have TWO copies of "count":
CountedClass::count, and CountedClass2::count, both initialized to 0 |
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s*w
发帖数: 729 | 2 发信人: yangguo1220 (yangguo), 信区: JobHunting
标 题: 一道count frequency of all words的面试题
发信站: BBS 未名空间站 (Wed Sep 18 20:44:44 2013, 美东)
100G的文本文件，4G内存，4个CPU。写一个程序：列出所有文本文件中的word
frequency,并output到一个最终文件中, 格式为 . 这个最终文件
的size也可能比内存小.
大家有啥建议?
【 以下文字转载自 JobHunting 讨论区 】
发信人: saw (句子熊), 信区: JobHunting
标 题: Re: 一道count frequency of all words的面试题
发信站: BBS 未名空间站 (Thu Sep 19 02:18:15 2013, 美东)
just practicing c++11 multi-threading and got the following code to try out
your example
problem wi... 阅读全帖 |
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n****1
发帖数: 1136 | 3 其他的静态/OO/FP这些早就不是啥新特性了，swift所做的不过是选择性吸收而已。而
最独特的东西其实是auto ref counting.
Ref counting其实cpython/cruby这些解释器都有用，但像swift这样追求高性能的语言
还是第一个吧。ref counting应该是以cpu换内存，特点是low latency low
throughput,在移动终端比较适合，桌面就没啥优势了，服务器端就算绊脚石了吧 |
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d****p
发帖数: 685 | 4 Use RegExp.
You may try the following code:
my $string = "ABCDDDEEDDABDDEAAB";
my $count = 0;
while ($string =~ s/AB//) {$count++}
print $count; |
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h**h
发帖数: 488 | 5 ID Code
０１ １１１
０１ １１１
０１ １１２
０１ １１１
０２ １１１
０２ １１２
０２ １１２
现在我要弄成
ID Code Count
０１ １１１ ３
０１ １１２ １
０２ １１２ ２
０２ １１１ １
就是把unique的Code count出来，从大到小排。SAS Proc SQL count怎么做。 |
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l******m
发帖数: 111 | 6 PROC SQL;
CREATE TABLE X1 AS
SELECT DISTINCT ID,CODE,COUNT(CODE) AS COUNT
FROM (YOUR DATA)
GROUP BY ID,CODE
ORDER BY ID , COUNT DESC
;
QUIT; |
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l******9
发帖数: 579 | 7 I need to count the unique values in one column in EXCEL 2010.
The worksheet has 1 million rows and 10 columns. All cell values are string
or numbers.
I used the solution at Count unique values in a column in Excel
=SUMPRODUCT((A2:A1000000<>"")/COUNTIF(A2:A100000,A2:A1000000&""))
But, it runs so long time that the EXCEL is almost frozen. And, it generates
25 processes in Win 7.
Are there more efficient ways to do it ?
Also, in the column, all values have for format of
AX_Y
here, A is a chara... 阅读全帖 |
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m*******e
发帖数: 90 | 8 摘自网上：
Count data is usually best modeled with distributions like a binomial (where
there is a maximum count), Poisson, or negative binomial (or others). In
these distributions there is a relationship between the mean and the
variance. ANOVA models assume normal distributions and equal variance, both
of which are violated if the "truth" is one of these other distributions.
That being said, the binomial, Poisson, and negative binomial can all be
approximated by a normal distribution under certain ... 阅读全帖 |
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w*******y
发帖数: 60932 | 11 6 Pack Nature Valley Crunchy Granola Bars (12 Count Boxes) 72 Bars for $12.
43 free shipping from Amazon
On sale for $17.77 - Discounts = $12.43
72 Bars total
Works out to about .17 per Bar
Use Subscribe and Save and Promo Code to get price and free shipping
Use Code GMBOXTOP
Nature Valley Crunchy Granola Bars, Oats 'n Dark Chocolate, 12-Count Boxes (
Pack of 6)
Link:
http://www.amazon.com/Nature-Valley-Crunchy-Chocolate-12-Count/dp/B0032GMRBO/ref=pd_ecc_rvi_cart_1
Nature Valley Crunchy Granol |
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w*******y
发帖数: 60932 | 12 Simply Vera Vera Wang 800-Thread Count Sheet Set 59.11 Shipped for me after
stacking codes.
Link:
http://www.kohls.com/kohlsStore/bedandbath/sheets/luxury/PRD~c19190/Simply Vera Vera Wang 800Thread Count Sheet Set.jsp
Use promotion code UTAKE20 for 20% off ( through 8/28)
Then stack with ONE of the following code for additional 15% off
THANKS6672 (through 9/4/10)
LOWPRICE15 (through 8/28/10)
Shipping is $.99 per item. (through 8/28)
Count on comfort when you use this Simply Vera Vera Wang sheet |
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w*******y
发帖数: 60932 | 14 Lipton Cup - a - Soup, Chicken Noodle with White Meat, 4- Count Pouches per
Box (Pack of 12) $8.59 free shipping from Amazon
Use Subscribe and Save to get price and free shipping
Case of twelve, 4 count boxes, 48 cup size servings
Made with chicken, parsley, and onion powder
Low in fat; good source of thiamin and only 45 calories per serving
Quick and easy to make, just add hot water
Wholesome on-the-go snack or meal
Lipton Cup-a-Soup, Chicken Noodle with White Meat, 4-Count Pouches per Box (
Pa |
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w*******y
发帖数: 60932 | 15 Kittrich Promarx Clear Stick Pens, Mediium Point, Black, 10 Count .53 and
other cheap Writing instruments, free shipping with Prime (FSSS) from Amazon
As usual, prices may change
Kittrich Promarx Clear Stick Pens, Mediium Point, Black, 10 Count .53
Link:
http://www.amazon.com/gp/product/B0032AMZWG/ref=ord_cart_shr?ie=UTF8&m=ATVPDKIKX0DER
Dixon Ticonderoga RediSharp PLUS, Fine Point Permanent Marker, Black, 4-
Count, $1.26
Link:
http://www.amazon.com/gp/product/B002B55W96/ref=ord_cart_shr?ie=UTF8 |
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w*******y
发帖数: 60932 | 16 Roasted Mixed Nut [amazon.com]
$14.17, but $12.04 with subscribe and save.
Product Features
Pack of six, 6-count boxes (total of 36-count)
Offer a perfect balance of savory nuts and sweet granola
Rich with all-natural ingredients
Dipped in a creamy nut-butter coating
High in protein and absolutely free of trans fat and cholesterol
Cashew:
http://www.amazon.com/Nature-Valley-Granola-Cashew-6-Count/dp/B001E6GFR6/ref=pd_bxgy_gro_text_b
$14.42, but $12.26 with subscribe and save.... 阅读全帖 |
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w*******y
发帖数: 60932 | 17 Link:
http://www.takeactiontakeadvil.com/
No purchase necessary. Offer limited to first 500,000 eligible US
registrants, and offer ends when supply of 500,000 coupons is exhausted.
Limit one (1) coupon request per household while supplies last except where
prohibited by law. Coupon valid for one (1) package of either 24 count Advil
Tablets or 20 count AdvilLIQUI-GELS Pfizer, Inc. is not responsible
for any misdirected, mutilated, lost, late, or incomplete coupon requests or
mail, or for any netw... 阅读全帖 |
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w*******y
发帖数: 60932 | 18 First post
* Pack of three, 18-count bags (total of 54 counts)
* All our fresh roasted coffee pods are made from 100% Arabica coffees;
certified Kosher
* This dark roasted coffee has a unique, outstanding body with a
suprisingly bright finish
* Conveniently packed in a easy open bag that uses less packaging to
reduce waste!
* These coffee pods are packed right out of our roaster for maximum
freshness and are specifically designed for the Senseo Pod Brewer
Select subscribe and... 阅读全帖 |
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w*******y
发帖数: 60932 | 23 @ Amazon w/ s&s
Cheerios Honey Nut , Milk 'n Cereal Bars, 6-Count Boxes (Pack of 10)
21.00 shipped
Case of ten, 6-count boxes (total of 60 counts)
Filling made with real milk
Contains 13 vitamins and minerals
Excellent source of calcium and iron
Link:
http://www.amazon.com/gp/product/B000EMK51S/
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w*******y
发帖数: 60932 | 29 This is better than the Amazon Friday Multi-Pack Deal if you are OK with Non
-Frosted Brown Sugar Cinnamon, and Low Fat Strawberry Flavors.
Use Subscribe and save to get the $15.78 and $15.81 12 Pack (of 8-Count)
price with free shipping:
Pop-Tarts, (Not Frosted) Brown Sugar Cinnamon, 8-Count Tarts (Pack of 12) [
Grocery]
Link:
http://www.amazon.com/gp/product/B000E283KS/ref=ox_ya_os_product
Pop-Tarts, Frosted Low Fat Strawberry, 8-Count Tarts (Pack of 12) [Grocery]
Link:
http://www.amazon.com/g... 阅读全帖 |
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w*******y
发帖数: 60932 | 30 Got one of these coffee makers for Christmas and am on the hunt for cheap k-
cups. This is about half of the normal cost of all the others. Plus, I
love Caribou coffee.
Link:
http://www.amazon.com/Caribou-Coffee-French-24-Count-Brewers/dp/B001SL3SJ0
Product Features
48-count k-cups
Caribou Coffee, French Roast, 24-Count K-Cups for Keurig Brewers (Pack of 2)
48 single serving packs; use with Keurig brewers
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w*******y
发帖数: 60932 | 31 Pop-Tarts Toaster Pastries, Frosted Strawberry, 36-Count Pastries
Product Features
* Delicious strawberry flavor
* Baked with real fruit
Price: $7.88 ($0.22 / count) & eligible for free shipping with Amazon Prime
Save an extra 15% with Subscribe & Save: Sign up to have this item delivered
at a regular interval of your choice, and the current price drops to $6.70
($0.19 / count)
Link:
http://www.amazon.com/Pop-Tarts-Toaster-Pastries-Strawberry-36-
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w*******y
发帖数: 60932 | 33 Save an extra 15% on Nature Valley Granola Bars and Trail Mixes, Crunchy
Granola Bars, Variety Pack of Cinnamon, Oats 'n Honey, and Peanut Butter, 12
-Count Boxes $9.96 + others
Use Sub and save ( Where available ) and Promo Code
Use promo code NATVALLY
Nature Valley Crunchy Granola Bars, Variety Pack of Cinnamon, Oats 'n Honey,
and Peanut Butter, 12-Count Boxes (Pack of 6) Link:
http://www.amazon.com/Nature-Valley-Crunchy-Cinnamon-12-Count/d
Link for all promo products Link:
http://www.amazo... 阅读全帖 |
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w*******y
发帖数: 60932 | 35 It's getting harder and harder to find decent k-cup deals at Amazon given
commodity prices, but this one is pretty good...
Link:
http://www.amazon.com/Van-Houtte-Hazelnut-Brewers-24-Count/dp/B
Van Houtte Hazelnut K-Cups for Keurig Brewers, 24-Count Boxes (Pack of 2)
Pack of two, 24-count each
Is fine Arabica coffee
Have the the taste of hazelnut enhances the natural aroma and flavor
4 out of 5 stars by 4 reviewers - I've had it and its good!
It's the usual subscribe and save offer...
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w*******y
发帖数: 60932 | 36 Cigars International: Pinar Del Rio cigars 25 count box for $39.99($1.60/
each)
I just ended up getting a box of the Pinar Del Rio Oscuro (Size: Corona) 25
count box for $39.99. They also have Pinar Del Rio Habano Sun Grown same
size and count for same price. I personally haven't tried these, but I'm
looking forward to trying these and have heard good things about this
particular brand. I personally prefer the Robusto size, but I'm a and didn'
t want to fork over another $10(which would come ou... 阅读全帖 |
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w*******y
发帖数: 60932 | 38 Amazon has Bounce Fabric Softener Sheets, Outdoor Fresh Scent, 120-Count Box
(2-Pack) for $7.40 with subscribe & save and the $0.50c coupon
Sign into your amazon acct
Bounce Fabric Softener Sheets, Outdoor Fresh Scent, 120-Count Box (Pack of 2
):
http://www.amazon.com/Bounce-Fabric-Softener-Outdoor-120-Count/
I'm not sure if the coupon automatically applies or if you have to Click on
the "Save $0.50 with this Coupon" on the product page
Select "subscribe now" (right side of page)
Total should be... 阅读全帖 |
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w*******y
发帖数: 60932 | 39 Price for Pampers Baby Dry Size 3, 144 count just dropped $8 and now $27.99.
Save an extra 30% with Subscribe & Save and Amazon Mom: Get the standard 15
% discount when you sign up for Subscribe & Save delivery. Combine that with
an additional 15% savings exclusively for Amazon Mom members on select
diapers and wipes, and this item's current price drops to $19.59 ($0.14 /
count) . Subscribe & Save shipping is always free. No fees, no risks, no
obligations.
Add manufacturers $1.50 coupon and pri... 阅读全帖 |
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w*******y
发帖数: 60932 | 47 Link:
http://www.amazon.com/Huggies-Natural-Wipes-Scented-56-Count/dp
#productPromotions" rel="nofollow" target="_blank" onclick="_gaq.push(['_
trackEvent', 'thread', 'click', '3156620 - huggies-natural-care-baby-wipes-
scented-soft-packs-56count-pack-of-8-for-8.60-with-amazon-mom-subscribe-and-
save']);">http://www.amazon.com/Huggies-Nat... romotions
Huggies Natural Care Baby Wipes, Scented, Soft Packs, 56-Count (Pack of 8)
for $8.60, less than 2 cents per wipe
good and Clean
Product Features
... 阅读全帖 |
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w*******y
发帖数: 60932 | 48 DEAL IS DEAD NOW!!!!
Link:
http://www.amazon.com/Huggies-Natural-Wipes-Scented-56-Count/dp
#productPromotions" rel="nofollow" target="_blank" onclick="_gaq.push(['_
trackEvent', 'thread', 'click', '3156804 - deal-is-dead-now-huggies-natural-
care-baby-wipes-scented-soft-packs-56count-pack-of-8-for-8.60-with-amazon-
mom-subscribe-and-save']);">http://www.amazon.com/Huggies-Nat... romotions
Huggies Natural Care Baby Wipes, Scented, Soft Packs, 56-Count (Pack of 8)
for $8.60, less than 2 cents per ... 阅读全帖 |
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w*******y
发帖数: 60932 | 49 ]Here is a great deal from Cigar.com. You get 10 Cigars plus a Yukon 40
Count Humidor. I have 2 of these humidors and the hold the humidity very
well unlike the humidors with a glass top. This humidor usually go for
about $40 each.
This is a great combo with a real good looking humidor for 29.95.
This is whats included.
Sampler includes guillotine cutter, humidor and two each of the following:
-1-Partagas
-1-Hoyo de Monterrey
-1-5 Vegas Cask Strength II
-1-Padilla Miami
-1-Sancho Panza
-1-CA... 阅读全帖 |
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w*******y
发帖数: 60932 | 50 Special K Protein Meal Bar, Strawberry, 6-Count 1.59 oz. Bars (Pack of 3) $6
.37 free shipping from Amazon
Use Subscribe and Save to get price and Free shipping
Special K Protein Meal Bar, Strawberry, 6-Count 1.59 oz. Bars (Pack of 3):
http://www.amazon.com/Special-Protein-Meal-Strawberry-6-Count/d
$6.37
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