All Questions
9 questions
3votes
1answer
136views
Create a forecast matrix from time series samples
I would like to create a matrix of delay from a time series. For example, given y = [y_0, y_1, y_2, ..., y_N] and W = 5 I need to create this matrix: ...
- 133
-2votes
1answer
162views
Adding 1 million combinations of numbers to a file
The code adds approximately 1,720,000 different combinations of numbers to a file, some_other_file.txt. The numbers range from 2 digits long to 16 digits long. I ...
0votes
1answer
87views
Optimise python functions for speed
Any one can help me optimise those three functions? I did profiling and timing of my original python file and found that most calls and time duration was because of those three functions. The three ...
2votes
1answer
229views
Further Optimizing a Segmented Sieve of Eratosthenes
I've implemented a Segmented Sieve of Eratosthenes that assumes each segment is about length \$ \sqrt{N}\$ for some upper limit \$N\$. I further optimized the function by skipping all the evens when ...
- 171
5votes
1answer
664views
Bank account balance program
Would my code be considered fairly optimal and efficient? If not, where can I look to improve the code? The program works just fine. Would this method scale well if the dictionary containing the ...
1vote
1answer
4kviews
8votes
2answers
373views
Maximize a traveling employee's vacation over k weeks
I have following problem statement A lazy employee works at a multi-national corporation with N offices spread across the globe. They want to work as few days over k weeks as possible. Their company ...
- 1,076
6votes
1answer
95views
Build embedded XML based on string containment
I have a list of strings that represent a path. These are unique, unsorted values that look like this: ...
- 525
4votes
0answers
1kviews
Memory optimization when finding the Cartesian product in Python
My function gets the Cartesian product of a list of lists of tuples. The function is correctly producing the list of lists, but it's a memory hog (and leads to a MemoryError for large data sets, with ...
- 141
