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design a stack such that getMinimum( ) should be O(1)
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180
EDIT: This fails the "constant space" constraint - it basically doubles the space required. I ...
How to install CocoaPods?
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POD Install
[ 1 ] Open terminal and type:
sudo gem install cocoapods
Gem will get installed in Ruby inside System library. Or try on 10.11 Mac OSX El Capitan, type:
sudo gem install -n /usr/local/bin cocoapods
If there is an error "a...
Android Facebook style slide
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176
I've had a play with this myself, and the best way I could find was to use a FrameLayout and l...
How to check a string for specific characters?
...# original answer given, but less Pythonic than the above...
s.find('$')==-1 # not found
s.find('$')!=-1 # found
And so on for other characters.
... or
pattern = re.compile(r'\d\$,')
if pattern.findall(s):
print('Found')
else
print('Not found')
... or
chars = set('0123456789$,')
if an...
How to use string.replace() in python 3.x
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edited May 25 at 16:17
Boris
4,69255 gold badges4242 silver badges5252 bronze badges
answered F...
With Spring can I make an optional path variable?
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196
You can't have optional path variables, but you can have two controller methods which call the...
SVG drop shadow using css3
...adow.
Relevant bits from the example:
<filter id="dropshadow" height="130%">
<feGaussianBlur in="SourceAlpha" stdDeviation="3"/> <!-- stdDeviation is how much to blur -->
<feOffset dx="2" dy="2" result="offsetblur"/> <!-- how much to offset -->
<feComponentTr...
How to save a plot as image on the disk?
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11 Answers
11
Active
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Sort a list by multiple attributes?
... can be a function that returns a tuple:
s = sorted(s, key = lambda x: (x[1], x[2]))
Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here you can use sort instead of...
How can I force a hard reload in Chrome for Android
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18 Answers
18
Active
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