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What is the difference between memoization and dynamic programming?
What is the difference between memoization and dynamic programming? I think dynamic programming is a subset of memoization. Is it right?
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Converting datetime.date to UTC timestamp in Python
I am dealing with dates in Python and I need to convert them to UTC timestamps to be used
inside Javascript. The following code does not work:
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What is the difference between Numpy's array() and asarray() functions?
What is the difference between Numpy's array() and asarray() functions? When should you use one rather than the other? They seem to generate identical output for all the inputs I can think of.
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PostgreSQL - fetch the row which has the Max value for a column
...that contains records with columns for time_stamp, usr_id, transaction_id, and lives_remaining. I need a query that will give me the most recent lives_remaining total for each usr_id
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Designing function f(f(n)) == -n
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Hmm, saving state with even and odd numbers, I should've thought of that.
– Unknown
Apr 8 '09 at 22:25
38
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SortedList, SortedDictionary and Dictionary
...at SortedList<TKey, TValue> SortedDictionary<TKey, TValue> and Dictionary<TKey, TValue> implement the same interfaces.
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Listing all permutations of a string/integer
...from my experience of interviews though) is to take a string or an integer and list every possible permutation.
28 Answers
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Comparing two NumPy arrays for equality, element-wise
... all values of array (A==B) are True.
Note: maybe you also want to test A and B shape, such as A.shape == B.shape
Special cases and alternatives (from dbaupp's answer and yoavram's comment)
It should be noted that:
this solution can have a strange behavior in a particular case: if either A or B...
Understanding REST: Verbs, error codes, and authentication
... APIs around default functions in my PHP-based web applications, databases and CMSs.
10 Answers
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Convert nested Python dict to object?
...nt way to get data using attribute access on a dict with some nested dicts and lists (i.e. javascript-style object syntax).
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