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How to check if a database exists in SQL Server?
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edited Jun 8 '12 at 13:50
SteveC
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answer...
RegEx: Smallest possible match or nongreedy match
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3 Answers
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form_for but to post to a different action
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answered Mar 16 '11 at 2:43
AustinAustin
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How to efficiently compare two unordered lists (not sets) in Python?
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253
O(n): The Counter() method is best (if your objects are hashable):
def compare(s, t):
retu...
Calculate the median of a billion numbers
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53
Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if t...
Removing multiple keys from a dictionary safely
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answered Jan 24 '12 at 23:20
GlaslosGlaslos
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Replace specific characters within strings
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With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18", "e18947")
group
[1] "12357e" "12575e" "197e18" "e18947"
gsub("e", "", group)
[1] "12357" "12575" "19718" "18947"
What gsub does here is to replace each occurrence of "e" with an empty string "".
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Given an array of numbers, return array of products of all other numbers (no division)
... 1, a[0], a[0]*a[1], a[0]*a[1]*a[2], }
{ a[1]*a[2]*a[3], a[2]*a[3], a[3], 1, }
Both of which can be done in O(n) by starting at the left and right edges respectively.
Then multiplying the two arrays element by element gives the required result
My...
Fixed width buttons with Bootstrap
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321
You can also use the .btn-block class on the button, so that it expands to the parent's width....
How to change the background color of a UIButton while it's highlighted?
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30 Answers
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