compsci | Lecture notes , projects , and more resources | Machine Learning library
kandi X-RAY | compsci Summary
kandi X-RAY | compsci Summary
Lecture notes, projects and various resources on the courses I attended at Università degli Studi di Milano Bicocca for my Bachelor's and Master's degrees in Computer Science. You're welcome to report errors, improvements or feedbacks as Issues, or directly propose modifications with Pull Requests.
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QUESTION
I have a query and which give the count greater than 1, but what I expect is I need the result to be based on particular column(Rollno.) How to achieve it.
Table Studies
...ANSWER
Answered 2021-May-03 at 09:01like this? I do not confirm your needs, but the internalstaff_2 column can refer to STRING_AGG() to replace the nested subquery in the following script.
QUESTION
Pygame was working perfectly last night, now the pygame.init() function is taking ~ 40 seconds to finish compared to being instant before.
...ANSWER
Answered 2021-Feb-22 at 18:48According to this GitHub issue, a troubleshooting step is to do all of the init
s separately, like:
QUESTION
So I'm pretty new at Java, but I'm making a text adventure game for CompSci, and this is my code for levels.
...ANSWER
Answered 2021-Jan-26 at 18:32The only meaning you should assign to System.nanoTime
is to call it twice and compare the two values as an approximate number of elapsed nanoseconds. Do not interpret the two values as being anything other than as minuend and subtrahend (the two parts of a subtraction operation) for elapsed nanos.
QUESTION
I am writing a Ruby on Rails web application to be deployed on Heroku.
The development database is SQLite and the production database is PostgreSQL.
Everything works locally in the development and test environments, and worked on Heroku up until the last batch of revisions. Suddenly, attempting to create an instance of the Customer model is throwing
...ANSWER
Answered 2020-Dec-14 at 22:06So it turned out the problem was due to the inclusion of gem 'transaction_faker' in my gem-file, which added the module descriptive_statistics (the source of the problem). My GUESS is that it must override the sum method of the Enumerable module used in the conversion from migration to Postgres, or something along those lines.
QUESTION
I'm incredibly unsure what to call this problem, I feel like there might be a compsci term for it but I'm not familiar with it.
As a trivial example, let's say I have a simple example of parent company and subcompanies identified by unique numbers. What I want, is if Company A owns Company B, and Company B owns Company C, I want my data to reflect that Company A owns Company C. Here's a trivial example
What I would like to do is transform this data:
...ANSWER
Answered 2020-Nov-18 at 03:47That can be done with a join (or merge
), to add the sub-sub-company in a third column, then you just need to take the rows and append them to the original data frame.
QUESTION
I am working on a project for an introductory CompSci course in java and I am stuck. We have to fill out the methods for a rock, paper, scissor game called stick, fire, water. I thought I filled it out correctly, but every time I run it, my program says it is a tie. It displays both my choice and the computer choice, but it says it is a tie and it doesn't increment the rounds played (or either my score or the computer's score, but since it is a tie that would not happen anyways, although I am sure it is still messed up).
...ANSWER
Answered 2020-Oct-07 at 22:36There are numerous suspicious things about your code, but the specific issues you describe are likely related to the fact that your playRound()
method declares local variables shadowing most of the class's instance variables:
QUESTION
I'm doing a small project for my AP CompSci class, basically, it's just take the input, determine if it's positive or not and I'm stuck with this
...ANSWER
Answered 2020-Sep-21 at 22:40The correct syntax is:
QUESTION
I'm a beginner compsci student and I'm trying to code a simple server in python that takes a .HTML page stored in the same directory and sends it to a client on the same network using a TCP connection.
This is my code:
...ANSWER
Answered 2020-Sep-08 at 12:00I would use the http.server
library
QUESTION
I have a CompSci project I designed where I wanted to make a program that can tell me the pixel information under the cursor, match it to a list of RGB values in a CSV file, find the closest color, and display it.
here is my CSV file
...ANSWER
Answered 2020-Apr-21 at 13:37Think about these colors as points in three-dimensional space. You want to find the nearest point to yours from these already existing points. Well fortunately, there's an established formula to do that. Let's start in your code sample at
QUESTION
For my CompSci homework I am supposed to create a function that changes all black pixels in a picture to red. I think I may have over complicated things. We are only allowed to use the cImage / image module.
...ANSWER
Answered 2020-Apr-14 at 19:48I figured it out. In line 22, i had written:
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