#data-structures

#clojure Immutable and Persistent #data Structures
▻https://hackernoon.com/clojure-immutable-and-persistent-data-structures-3978118f6805?source=rss

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What Clojure is?Clojure is modern dialect of old school programming language named as LISP. Clojure strongly believes in Code as Data and Data as Code philosophy just like LISP. Clojure is a dynamic, general purpose programming language that runs in the Java Virtual Machine. Clojure emphasizesGet Clojure set upClojure needs JVM as its runs on top of JVM. Make sure you have min Java 1.7 installed on your systemmkdir -p ~/bin && cd ~/bin curl -O ▻https://raw.githubusercontent.com/technomancy/leiningen/stable/bin/lein chmod a+x leinexport PATH="$PATH":~/binorcurl -O ▻https://download.clojure.org/install/linux-install-1.10.0.403.shchmod +x linux-install-1.10.0.403.shsudo ./linux-install-1.10.0.403.shData Structures4 fundamental Data Structure of Clojure.List ()Vector []Sets (...)

#data-science #collection #data-structures

#python Implementation of Optimal Sample Variance for Voyager 2’s Spaceflight
▻https://hackernoon.com/python-implementation-of-optimal-sample-variance-for-voyager-2s-spacefli

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A Python implementation of how to select a sample with maximal coverage of a population while minimising punishing-costs.18,000,000,000 km away, Voyager 2 left the warming afterglow of solar-winds from the sun that is the heliosphere, and ventured onwards towards interstellar #space.Since launching on the 20th August 1977, the spacecraft has enjoyed an expansive panorama of our solar system — observing Jupiter in 1979, Saturn from 1981 and Uranus towards the end of 1985.Given the vastness of space, it begs the question — if you have a limited selection spots available, how can you determine the best sample of a population?In this case, I assume the “best” to be a selection’s relative uniqueness against the entire population. For instance, how unique is Mars amongst all other planets in our solar (...)

#coding #programming #data-structures

#algorithms and Data Structures #interview Preparison & Questions — Part 1
▻https://hackernoon.com/algorithms-and-data-structures-interview-preparison-questions-part-1-a23

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Algorithms and Data Structures Interview Preparation & Walkthrough — Part 1Finding the first job for a new grad (Source: Sparks Group)Many of new graduates want to knock on the doors of big companies in Silicon Valley such as Facebook, Amazon, Apple, Netflix, Google and Microsoft. However, preparing for a technical interview is a long and tiresome process. I, myself is also a SW engineer, been there, done that, but still, at some days I will need to face the process again. So I decided to write some articles to remind myself (and you) to get through the process as smooth as possible.Useful ResourcesAlgorithms, Part 1 and Algorithms, Part 2 are two of the most famous free online courses for Algorithms in case you want to refresh your memory.There are two other books I would recommend (...)

#data-structures #interview-questions #programming

#algorithms and Data Structures #interview Preparation & Walkthrough — Part 2, Array and String
▻https://hackernoon.com/algorithms-and-data-structures-interview-preparation-walkthrough-part-2-

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Algorithms and Data Structures Interview Preparation & Walkthrough — Part 2, Array and StringArrrrr…. Ray!(Source: Gorgaiphotography/iStock)In my previous post: Algorithms and Data Structures Interview Preparation & Walkthrough — Part 1, we talked about how to do Complexity Time and Space analysis, and also see the common Big-O factors with examples.In this post, I will start talking about Array in depth, and cover some interview questions and hopefully by the end of the reading, you would have a good glance about Array. Once we are familiar with Array, I will talk about String and how to use Array to solve String problems.Array is a data structure that contains a group of elements. The most basic implementation of an array is a static array. The reason it’s called static is the size (...)

#programming #interview-questions #data-structures