All Questions
Tagged with arraypython-3.x
39 questions
5votes
4answers
2kviews
Automate the boring stuff with python - Character picture grid
Character Picture Grid Say you have a list of lists where each value in the inner lists is a one-character string, like this: ...
6votes
7answers
14kviews
Hacker rank 30 days of code Maximum Sum of Hourglass
I came up with this code as a solution to a contest question. The original question can be viewed here for attribution sake: Hackerrank 2d array problem Sample input is like this: ...
0votes
1answer
36views
Mangle words to bytearray of lo/hibytes
I would like to refactor the following code snippet adapted from a project I'm involved. It is part of a code to control power outlets via network. The code snippet was written by myself based on the ...
- 191
3votes
1answer
848views
Divide array into three disjoint sets with equal sum
Problem definition : Array partition problem Given an array of positive integers, divide it into three disjoint subsets having equal sum. These disjoint sets cover the complete array. Example Input: [...
- 389
8votes
2answers
776views
Optimize function that returns length of a subarray
I did an exercise today on where the task is to write a function that returns the length of the longest subarray where the difference between the smallest and biggest value in the subarray is no more ...
- 191
2votes
2answers
79views
Send an array of files and return the first one that exists
I have a little project, chuy, which is basically a copy of Make. By request of users I have added support for toml configuration, since originally it only accepted ...
11votes
3answers
4kviews
Students with second lowest grade
I solved the Nested List Python challenge on HackerRank.com passing all test cases. Although this problem can likely be solved with a short script with clever one-liners, my approach was instead to ...
- 20.4k
7votes
3answers
4kviews
python (optimizing) bubble sort
I saw in Wikipedia (the first under Optimizing bubble sort) a pseudo-code to bubble sort and I implemented it in Python. I am posting my implementation here because I'm new to Python, and I'm looking ...
- 461
3votes
2answers
537views
Multiplying numpy arrays
I have written a function to multiply two numpy arrays. ...
4votes
1answer
105views
Dataframe transformation to numpy ndarray takes ages to complete
I would like to transform my dataframe into an array of fixed-sized chunks from each unique segment. Specifically, I would like to transform the ...
- 143
2votes
1answer
839views
Re-implementing an Array Class in Python
I gave an attempt at reinventing the wheel and recreate list methods using my own Array Class to broaden my understanding about lists. I would like advice regarding efficiency, and in implementing ...
- 1,234
3votes
3answers
657views
Given an array, find all its elements that can become a leader
I was successful in solving a challenge in codility, but my solution failed performance tests. How can I improve my solution? Challenge: Integers K, M and a non-empty array A consisting of N ...
- 131
5votes
1answer
352views
Applying gaussian blur on RGBA images
I designed the code and it works quite well for images of lower res. However my program takes a lot of time and ram to display higher res images (occupies 2GB RAM for 4k images and takes 20 minutes). ...
2votes
1answer
373views
Dice roller - python
I am about to graduate with my Associates degree in Math and will soon go for my bachelors. I've decided with two years of school left its best if I start learning to program. I am starting with ...
0votes
2answers
741views
Find the maximum value of | Ai - Aj | + | i - j |: [closed]
hackerearth.com practice problem Can you solve it?: Given an array 'A' consisting of 'n' integers, find the maximum value of the following expression: \$\lvert A_i - A_j\rvert + \lvert i - j\rvert\...
