大约有 48,000 项符合查询结果（耗时：0.0583秒） [XML]
What is the most efficient way of finding all the factors of a number in Python?
...return set(reduce(list.__add__,
([i, n//i] for i in range(1, int(n**0.5) + 1) if n % i == 0)))
This will return all of the factors, very quickly, of a number n.
Why square root as the upper limit?
sqrt(x) * sqrt(x) = x. So if the two factors are the same, they're both the square...
What are the mathematical/computational principles behind this game?
...
150
Finite Projective Geometries
The axioms of projective (plane) geometry are slightly differen...
Find which version of package is installed with pip
...
15 Answers
15
Active
...
How to print last two columns using awk
...
194
You can make use of variable NF which is set to the total number of fields in the input recor...
Remove empty elements from an array in Javascript
...
1
2
Next
1151
...
How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
My current version of ruby is ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.5.0] but I want to update it to the latest patch level using rvm. How can I do this?
...
How to create the most compact mapping n → isprime(n) up to a limit N?
...at produces a data structure with lowest memory consumption for the range (1, N], where N is a constant.
Just an example of what I am looking for: I could represent every odd number with one bit e.g. for the given range of numbers (1, 10], starts at 3: 1110
...
How do I declare and initialize an array in Java?
...
For primitive types:
int[] myIntArray = new int[3];
int[] myIntArray = {1, 2, 3};
int[] myIntArray = new int[]{1, 2, 3};
// Since Java 8. Doc of IntStream: https://docs.oracle.com/javase/8/docs/api/java/util/stream/IntStream.html
int [] myIntArray = IntStream.range(0, 100).toArray(); // From 0 ...
how to calculate binary search complexity
...
14 Answers
14
Active
...