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Finding three elements in an array whose sum is closest to a given number
...P: Given an array A of n integers and a target value S, does there exist a 3-tuple from A that sums to S?
modified problem P': Given an array A of n integers, does there exist a 3-tuple from A that sums to zero?
Notice that you can go from this version of the problem P' from P by subtracting ...
How to get last items of a list in Python?
...re's an example using the python CLI interpreter:
>>> a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a[-9:]
[4, 5, 6, 7, 8, 9, 10, 11, 12]
the important line is a[-9:]
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jQuery Multiple ID selectors
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231
Try this:
$("#upload_link,#upload_link2,#upload_link3").each(function(){
$(this).upload({
...
How to declare a global variable in a .js file
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answered Jun 3 '09 at 11:48
PatrikAkerstrandPatrikAkerstrand
42.6k1111 gold badges7272 silver badges9292 bronze badges
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Sublime Text from Command Line
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From build 3065 (Release Date: 29 August 2014) onwards Sublime text includes a command line helper, nameley subl.exe. It is at sublime's installation folder: copy it in to a folder included in the system path.
For example, in my case I...
iTerm2: How to expand split pane temporarily?
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3 Answers
3
Active
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Python, remove all non-alphabet chars from string
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123
Use re.sub
import re
regex = re.compile('[^a-zA-Z]')
#First parameter is the replacement, seco...
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
...wo arrays to be evaluated in boolean context (by
calling __bool__ in Python3 or __nonzero__ in Python2).
Your original code
mask = ((r["dt"] >= startdate) & (r["dt"] <= enddate))
selected = r[mask]
looks correct. However, if you do want and, then instead of a and b use (a-b).any() or ...
How to convert a string of bytes into an int?
...odule to do this:
>>> struct.unpack("<L", "y\xcc\xa6\xbb")[0]
3148270713L
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