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How do you add a Dictionary of items into another Dictionary
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You can define += operator for Dictionary, e.g.,
func += <K, V> (left: inout [K:V], right: [K:V]) {
for (k, v) in right {
left[k] = v
}
}
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Format a number as 2.5K if a thousand or more, otherwise 900
I need to show a currency value in the format of 1K of equal to one thousand, or 1.1K, 1.2K, 1.9K etc, if its not an even thousands, otherwise if under a thousand, display normal 500, 100, 250 etc, using javascript to format the number?
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How can I convert a dictionary into a list of tuples?
If I have a dictionary like:
11 Answers
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Update value of a nested dictionary of varying depth
I'm looking for a way to update dict dictionary1 with the contents of dict update wihout overwriting levelA
24 Answers
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Most efficient way to store thousand telephone numbers
...t. We view these remaining five digits as 17-bit binary integers and store k of those bits using one method and 17 - k = m with a different method, determining k at the end to minimize the required space.
We first sort the phone numbers (all reduced to 5 decimal digits). Then we count how many phon...
How to find the kth largest element in an unsorted array of length n in O(n)?
I believe there's a way to find the kth largest element in an unsorted array of length n in O(n). Or perhaps it's "expected" O(n) or something. How can we do this?
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Best way to merge two maps and sum the values of same key?
I want to merge them, and sum the values of same keys. So the result will be:
15 Answers
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Statistics: combinations in Python
...e function to do that in math , numpy or stat libraries. Something like a function of the type:
18 Answers
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List comprehension on a nested list?
...ed Aug 6 '13 at 6:05
Andrew ClarkAndrew Clark
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Algorithm to return all combinations of k elements from n
I want to write a function that takes an array of letters as an argument and a number of those letters to select.
71 Answe...