Python Development

I was working on one of the problems on Leetcode (problem 21). It asks me to merge two sorted linke… Read more How Does Self.next = None Get The Next Value Of L1?

I'm trying to implement binary image filter (to get monochrome binary image) using python &… Read more Python: How To Implement Binary Filter On Rgb Image? (algorithm)

I'm trying to optimize my design, but it's really difficult to put things in perspective. S… Read more Should I Optimize Around Reads Or Cpu Time In Google App Engine

I have a set of disordered vertices that may form a concave polygon. Now I wish to order them in ei… Read more Ordering Concave Polygon Vertices In (counter)clockwise?

What is the fastest method to get the k smallest numbers in an unsorted list of size N using python… Read more Fastest Method Of Getting K Smallest Numbers In Unsorted List Of Size N In Python?

I have a long string which I would like to break into pieces, of max X characters. BUT, only at a s… Read more Split A String Into Pieces Of Max Length X - Split Only At Spaces

Have the following code: import sys ints = [1,2,3,4,5,6,8,9,10,11,14,34,14,35,16,18,39,10,29,30,1… Read more Group Consecutive Integers Together

I got this question in an online coding challenge. Given a list of boxes with length and widths (l,… Read more Stacking Boxes Into Fewest Number Of Stacks Efficiently?

I have a string like '$200,000,000' or 'Yan300,000,000' I want to split the currenc… Read more Python Efficiently Split Currency Sign And Number In One String

I have two lists [1, 3, 4] [7, 8] I want to generate all the combinations of two list starting fro… Read more Generating All The Combinations Of Two Lists And Output Them One By One In Python

I need help with the following problem. Given an integer m, I need to find the number of positive… Read more Finding Natural Numbers Having N Trailing Zeroes In Factorial

I am getting NameError: name 'current_portfolio' is not defined def initialize(context): co… Read more Nameerror: Name 'current_portfolio' Is Not Defined

I have a series of images that are nothing more than a series of colored rectangles in a black back… Read more Divide Image Into Rectangles Information In Python

Here is an algorithm I would like to implement using numpy: For a given 1D array, calculate the max… Read more Cut Peaks And Troughs

I'm trying to solve the following problem in Python Given an array and an integer k, find the … Read more Finding The Max Of Each Continguous Subarray Of A Given Size

I am having some trouble with solving a problem I encountered. I have an array with prices: >>… Read more Fast Way To Select N Items (drawn From A Poisson Distribution) For Each Element In Array X

I was asked this in an interview today, and am starting to believe it is not solvable. Given a sort… Read more How To Sort An Array With N Elements In Which K Elements Are Out Of Place In O(n + K Log K)?

I understand that you could be more efficient with memory in the implementation of map than in how … Read more Where Does The Performance Boost Of Map Or List Comprehension Implementations Over Calling A Function Over A Loop Come From?

There is a great implementation of the algorithm I am after here (by @lazy dog). However, I need t… Read more C# Split A List Into All Combinations Of N Groups - Code Migration From Python

A happy number is defined by the following process. Starting with any positive integer, replace the… Read more When To Stop When Number Is Not A Happy Number