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Showing posts with the label Data Structures

Circular Queue Python

I am trying to make a circular queue in Python so that when the last element in the array is reache… Read more Circular Queue Python

Parse An Xsd File Using Python

I am trying to generate an XML file from a given XML schema. I have been able to do it with pyxb li… Read more Parse An Xsd File Using Python

Mapping A List To A Huffman Tree Whilst Preserving Relative Order

I'm having an issue with a search algorithm over a Huffman tree: for a given probability distri… Read more Mapping A List To A Huffman Tree Whilst Preserving Relative Order

All Unique Paths In A Directed Acyclic Graph, In Randomized Order, Via Python Generator?

I have a Directed Acyclic Graph (DAG), which consists of layers, with two subsequent layers being c… Read more All Unique Paths In A Directed Acyclic Graph, In Randomized Order, Via Python Generator?

How To Return Different Types Of Arrays?

The high level problem I'm having in C# is to make a single copy of a data structure that descr… Read more How To Return Different Types Of Arrays?

Create A List Like Object Using A Bitarray

I need to track a set of perhaps 10 million numbers in Python. (All numbers are between 0 and 2^32… Read more Create A List Like Object Using A Bitarray

Find Two Numbers In Array Such That All Elements Between Them Is Smaller Than Smallest Of Two Number

how to find pairs in array such that the elements which are between them are smaller than smallest … Read more Find Two Numbers In Array Such That All Elements Between Them Is Smaller Than Smallest Of Two Number

Finding The Max Of Each Continguous Subarray Of A Given Size

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

How To Return The Count Of Words From A List Of Words That Appear In A List Of Lists?

I have a very large list of strings like this: list_strings = ['storm', 'squall', &… Read more How To Return The Count Of Words From A List Of Words That Appear In A List Of Lists?

Sys.getsizeof() Results Don't Quite Correlate To Structure Size

I am trying to create a list of size 1 MB. while the following code works: dummy = ['a' for… Read more Sys.getsizeof() Results Don't Quite Correlate To Structure Size

Python Get Random Key In A Dictionary In O(1)

I need a data structure that supports FAST insertion and deletion of (key, value) pairs, as well as… Read more Python Get Random Key In A Dictionary In O(1)

Whats The Best Data Structure For A Calendar / Day Planner?

I'm an intermediate programmer. I know C very well, Java somewhat well, and have just done some… Read more Whats The Best Data Structure For A Calendar / Day Planner?

Is Linked List Always Slower Than Python List?

I'm working on Problem Solving with Algorithms and Data Structures and come across this questio… Read more Is Linked List Always Slower Than Python List?

How Does Python Manage A 'for' Loop Internally?

I'm trying to learn Python, and I started to play with some code: a = [3,4,5,6,7] for b in a: … Read more How Does Python Manage A 'for' Loop Internally?

What Is The Best Way To Implement Nested Dictionaries?

I have a data structure which essentially amounts to a nested dictionary. Let's say it looks li… Read more What Is The Best Way To Implement Nested Dictionaries?

Python List Of Lists- Access To Individual Elements

I am trying to access a particular element of a list of lists in Python. I am bringing a bit of C/J… Read more Python List Of Lists- Access To Individual Elements