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How to find the kth smallest element in the union of two sorted arrays?
...mplexity here is O(log k), which is O(log N + log M).
Pseudo-code:
i = k/2
j = k - i
step = k/4
while step > 0
if a[i-1] > b[j-1]
i -= step
j += step
else
i += step
j -= step
step /= 2
if a[i-1] > b[j-1]
return a[i-1]
else
return b[j-1]...
What's the difference between deadlock and livelock?
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402
Taken from http://en.wikipedia.org/wiki/Deadlock:
In concurrent computing, a deadlock is a stat...
python dataframe pandas drop column using int
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172
You can delete column on i index like this:
df.drop(df.columns[i], axis=1)
It could work stra...
Remove unwanted parts from strings in a column
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answered Dec 3 '12 at 11:33
eumiroeumiro
165k2626 gold badges267267 silver badges248248 bronze badges
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Check if an element is present in an array [duplicate]
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ECMAScript 2016 incorporates an includes() method for arrays that specifically solves the problem, and so is now the preferred method.
[1, 2, 3].includes(2); // true
[1, 2, 3].includes(4); // false
[1, 2, 3].includes(1, 2); //...
How do I pass command line arguments to a Node.js program?
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How to downgrade or install an older version of Cocoapods
... of cocoa pods via the following command:
sudo gem install cocoapods -v 0.25.0
You can use older installed versions with following command:
pod _0.25.0_ setup
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set date in input type date
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162
Fiddle link : http://jsfiddle.net/7LXPq/93/
Two problems in this:
Date control in HTML 5 acce...
How to sum a variable by group
...quency, by=list(Category=x$Category), FUN=sum)
Category x
1 First 30
2 Second 5
3 Third 34
In the example above, multiple dimensions can be specified in the list. Multiple aggregated metrics of the same data type can be incorporated via cbind:
aggregate(cbind(x$Frequency, x$Metric2,...
Commenting multiple lines in DOS batch file
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answered Dec 15 '11 at 21:39
pdubspdubs
2,25811 gold badge1313 silver badges1313 bronze badges
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