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Appending an element to the end of a list in Scala
...lways returns the first element that was put inside the list. How can I solve this problem?
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Counting inversions in an array
I'm designing an algorithm to do the following: Given array A[1... n] , for every i < j , find all inversion pairs such that A[i] > A[j] . I'm using merge sort and copying array A to array B and then comparing the two arrays, but I'm having a difficult time seeing how I can use this to find...
Python __str__ versus __unicode__
Is there a python convention for when you should implement __str__() versus __unicode__() . I've seen classes override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it ne...
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
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Efficiency of purely functional programming
...that can happen when programming purely functionally as opposed to imperatively (i.e. allowing side-effects)?
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What is the best way to concatenate two vectors?
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Rolling median algorithm in C
...onably efficient ways to do it. The first is to sort the initial window of values, then perform a binary search to insert the new value and remove the existing one at each iteration.
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Convert DateTime to String PHP
I have already researched a lot of site on how can I convert PHP DateTime object to String. I always see "String to DateTime" and not "DateTime to String"
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