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    Home Unlabelled John Conway, inventor of the Game of Life, has died of COVID-19 Computer Science

    John Conway, inventor of the Game of Life, has died of COVID-19 Computer Science

    April 14, 2020

    John Conway, inventor of the Game of Life, has died of COVID-19 Computer Science

    John Conway, inventor of the Game of Life, has died of COVID-19

    Posted: 13 Apr 2020 04:56 PM PDT

    I write long tech articles about consoles in my free time for everyone to read and enjoy. Today I found out the official IEEE computer society copied my content with no attribution. Thank you!

    Posted: 13 Apr 2020 08:20 AM PDT

    I Am Teaching Git and Data Structure Fundamentals Tonight!

    Posted: 13 Apr 2020 05:24 PM PDT

    Hello everyone!

    An introduction to Git will be taking place live on the oneleif YouTube channel in just a moment! We are a nonprofit and just want to help people learn with a community.

    Learn how to create and manage GitHub repositories, run git commands from a terminal, and use different git UI clients.

    Basic language-agnostic data structures including primitive types(int, boolean, float), arrays, lists, dictionaries, and enums will also be covered.

    The stream start at 8pm CST, come ask questions! See you there!

    Youtube link: https://www.youtube.com/watch?v=r8ExKgZD85E

    submitted by /u/ambid17
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    Leetcode Day 14 Challenge Today - Perform String Shifts - Efficient Solution with Code walkthrough

    Posted: 14 Apr 2020 02:42 AM PDT

    Coding Demo for the Tom Scott "This Video Has ___ Views" Video

    Posted: 13 Apr 2020 09:06 PM PDT

    Hey Guys,

    I made a demo of how the "This Video Has ___ Views" video works. Let me know what you guys think!

    https://www.youtube.com/watch?v=7-74A-FKWxo

    submitted by /u/coder_et
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    Sum Root to Leaf Numbers - Day 46 of 100 Days of Programming - With Efficient Solution and explanation

    Posted: 13 Apr 2020 11:19 PM PDT

    Coding Demo for the Tom Scott "This Video Has ___ Views" Video

    Posted: 13 Apr 2020 11:12 PM PDT

    Hey Guys,

    I made a demo of how the "This Video Has ___ Views" video works. Let me know what you guys think!

    https://www.youtube.com/watch?v=7-74A-FKWxo

    submitted by /u/coder_et
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    MIS Major + CS Minor. What career options are possible?

    Posted: 13 Apr 2020 11:08 PM PDT

    Hi all,

    Im a third year college student studying management information systems. I recently began pursuing a minor in computer science- object oriented Java. I was wondering what career options I can pursue with the two?

    Thanks!

    submitted by /u/thepaintballplayer
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    Boolean algebra, AND gates & OR gates equations...

    Posted: 13 Apr 2020 10:35 PM PDT

    Just a question to put my mind at ease...

    So in Boolean algebra, the AND gate can be put into an algebraic equation "A•B=Y" and the OR gate can be put into the equation "A+B=Y"...

    Is there a particular reason that the AND gate equation did not incorporate the "+" sign instead?

    It is messing with my head that the "•" is AND, and the "+" is OR...

    Just out of curiosity, thanks!

    submitted by /u/P3DERSEN
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    Comp Sci Discord Network

    Posted: 13 Apr 2020 03:22 PM PDT

    Hello Computer Science friends, if any of you guys are interested in joining a Comp Sci Discord Networking Community for discussion, JOB SEARCH, ideas, studying, and industrial networking, this is the link, where you could discuss C++, Machine Learning, Data Science, AI, and Python. https://discord.gg/Z8ua3Rs Once you entered please type ?rank Computer Science

    submitted by /u/LelouchVKen
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    A* Self study Question?

    Posted: 13 Apr 2020 08:24 PM PDT

    ​

    Parenthetical Values are hueistics

    This is for an A* search. So I believe the decision tree would be

    1. S - starting point

    2. SA = 15 / SC = 15 / SB = 13 - Thus we choose SB because its the shortest distance, next:

    3. SBC = 13 + 10 = 23- This is the only choice, next:

    4. SBCD = 23 + 3 = 26 / SBCG = 23 + 12 = 35 / SBCE = 23 + 13 - Thus we choose SB because its the shortest distance, next:

    5. SBCDG = 23 + 10 = 33. The decision tree is done and this is the path selected.

    This is correct right? The only thing i'm not sure about is if on step 3 if SBCG is selected because the goal node is reached even tho SBCD contains a shorter path? Any help would be appreciated.

    submitted by /u/connar_with_a_t
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    Operator overloading in c++

    Posted: 13 Apr 2020 07:12 PM PDT

    How would you explain operator overloading in c++ to a dummy

    submitted by /u/burnsitoe
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    Contiguous Array - Leetcode Day 12 Challenge today - Explanations and Code walkthrough with Efficient Solution

    Posted: 13 Apr 2020 09:34 AM PDT

    How much does the school name of an undergraduate CS degree matter?

    Posted: 13 Apr 2020 03:23 PM PDT

    I don't go to a school like MIT or Berkeley (currently attending Michigan State University), but I was just wondering how much of an impact that would have on my chances of getting internships/work opportunities in larger tech cities? This might sound like a silly question but I'm still fairly new to this. Any help would be greatly appreciated.

    submitted by /u/sushiandcorgi
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    The odd number game algorithm

    Posted: 13 Apr 2020 11:50 AM PDT

    Hello there,

    I am practicing on some algorithm problems and I have faced a problem which I can't understand clearly.
    The problem is a string with N natural numbers, I need to search in this string for K distinct and disjoint sequences, containing in total a number L of elements, so that there is an odd number of odd numbers among the L elements. I want calculate the largest sum that can be obtained with these L numbers.

    Input:
    8 3 5 <-- natural numbers N, K and L.
    1 2 3 4 5 6 7 8 <--- N natural numbers representing the numbers in the string

    Subsequent {2}, {4}, {6,7,8} have an odd number of odd elements (one odd element, 7), their sum is 27 and is the maximum that can be obtained with 5 numbers that meet the required property.

    Output:

    27 <--- a single number representing the maximum amount by applying the rules.

    My question is, how did he obtain that output?

    submitted by /u/NoahJand
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    Using p2p video chat clients for conferencing

    Posted: 13 Apr 2020 10:26 AM PDT

    Hello all,

    I was wondering why people don't use any p2p video conferencing software, source code of many of which are available online specially in java, for video conferencing in recent times where privacy of many are at risk? I read in news that recently a popular meeting platform had objectionable content being played.

    If such a software does not exist, I propose to make one with an added security idea - Take photographs of each of the student who is enrolled and when student logs in, authenticate his face using face recognition, that ways, third party hackers can hardly interfere inbetween..(or can they still?)

    Please give your feedback and thoughts on this.

    Thanks

    submitted by /u/vinaych
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    Computational Category Theory in Python II: Numpy for FinVect

    Posted: 13 Apr 2020 05:43 AM PDT

    research survey

    Posted: 13 Apr 2020 07:42 AM PDT

    hey guys, im writing a research paper on the connections between learning a world language vs learning a programming language. im trying to collect some data through a survey and i thought that this would be a good place to put it. if you have some spare time a submission would be really appreciated (its short dont worry)

    https://docs.google.com/forms/d/e/1FAIpQLSci0lbLScPuBEY3cItFJCvpNMoEtxJxtavoJsMUYu36yDJOsA/viewform?usp=sf_link

    also, sorry if this kind of post breaks any rules. im not entirely sure which subreddit this should go on.

    submitted by /u/paowowlol
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    Computational complexity of a function

    Posted: 13 Apr 2020 05:34 AM PDT

    I have been reading about computational complexity lately, and though of a example which has been intriguing me some for sometime now.
    Let's say that we have a function that take a list of integers as input and for each number (x) in the list calls a function which has a complexity of O(3x). Here is a sample code in python:

    def func2(i):

    c = 3 **i

    r = []

    for a in range(c):

    r.append(a*a)

    return r

    def func1(n):

    res = []

    for i in n:

    res.extend(func2(i))

    return res

    func1([2,3])

    ​

    Now, what would be the complexity of func1; O(n), or O(3max(n)), or O(n3max(n)), or something else?

    Also, how do you deal with the complexity of operations being performed inside a function. For example, do you need to consider the complexity of 3**i to calculate the complexity of func2?

    submitted by /u/dfhs3dsf
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