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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...ities, knowing bi allows to compute
c1 = a1 + a2 + ... ak
c2 = a1a2 + a1a3 + ... + ak-1ak
...
ck = a1a2 ... ak
If you expand the polynomial (x-a1)...(x-ak) the coefficients will be exactly c1, ..., ck - see Viète's formulas. Since every polynomial factors uniquely (ring of polynomials is an Eu...
SOAP vs REST (differences)
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answered Nov 10 '13 at 0:45
Pedro WerneckPedro Werneck
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How to cast an Object to an int
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387
If you're sure that this object is an Integer :
int i = (Integer) object;
Or, starting from...
Can I browse other people's (Apple) bug reports? [closed]
...lly.
– Dave Verwer
Sep 28 '08 at 9:43
11
Which is all well and good, but since you don't know it'...
Check if a string is null or empty in XSLT
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323
test="categoryName != ''"
Edit: This covers the most likely interpretation, in my opinion, o...
Working copy locked error in tortoise svn while committing
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232
No problem... try this:
Go to top level SVN folder.
Right click on folder (that has your svn ...
Is there an equivalent of CSS max-width that works in HTML emails?
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230
+150
Yes, th...
Origin is not allowed by Access-Control-Allow-Origin
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379
I wrote an article on this issue a while back, Cross Domain AJAX.
The easiest way to handle t...
How to get the ActionBar height?
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AnthonyAnthony
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Remove all special characters with RegExp
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635
var desired = stringToReplace.replace(/[^\w\s]/gi, '')
As was mentioned in the comments it's ...