Sudoku-Solver | Simple Sudoku Solver | Learning library
kandi X-RAY | Sudoku-Solver Summary
kandi X-RAY | Sudoku-Solver Summary
A fairly simple Sudoku Solver made with JavaScript. You can easily input your Sudoku with no more than three clicks. The solving method is based on backtracking.
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Community Discussions
Trending Discussions on Sudoku-Solver
QUESTION
Sudoku is a well known CSP and, in this case, LC problem. I don't need the solution, which follows.
My question is why does self.DOMAIN = "123456789"
(line #4) work, whereas self.DOMAIN = map(str, range(1, 10))
(line #5) does not? Are they not equivalent?
ANSWER
Answered 2022-Jan-15 at 19:46You are suffering confusion between "generator" and "container".
Consult type( ... )
to tell the difference between them.
Python generators are "lazy", for excellent technical reasons. Sometimes we can get away with just evaluating the first K items of an infinite generator.
In your method you want everything greedily pulled out,
and then stored in a container.
The conventional way to phrase this is to wrap map
with list
:
QUESTION
I've stumbled upon an interesting phenomenon while I was tinkering with my sudoku solving algorithm written in Python.
I'm counting iterations in the backtracking algorithm and saving the number in a log file. (The algorithm seems to be completely deterministic, hence I'm intrigued by the sudden increase in the number of iterations to get the same output.)
Now the interesting part is:
When I tried to run the same code with PyPy (3.7-v7.3.3-win32) instead of Python 3.8 (64bit) the number of iterations about doubled when running with PyPy to 629505 from the 362073 with running with CPython.
My question is: Does anyone know why is this difference in the number of iterations?
Log:
...ANSWER
Answered 2021-Jan-21 at 01:14I think you're enumerating over sets at line 117. This order is unspecified, i.e. arbitrary, in CPython. In PyPy you get the order in which you've put the items in the set.
QUESTION
Here I want to solve the given sudoku inplace
...ANSWER
Answered 2020-Nov-08 at 07:15When the solution is found, return True
up the call stack.
Try this code:
QUESTION
I can't find an appropriate answer in previous asked questions. Below is a Unit Test code for my Sudoku-solver. In this app i have an interface 'ISudokuStrategy'. Only two classes inherits 'ISudokuStrategy': 'SimpleMarkUpStrategy' and 'NakedPairsStrategy'. My question is why are we Instantiating an interface as
...ANSWER
Answered 2020-Jul-21 at 15:39Well, it's you code, so... why do you? We cannot tell you why your code looks like it does.
What you should do, is make it a variable local to your unit test:
QUESTION
Background
I've implemented a sudoku-solver algorithm (backtracking) that looks like this:
...ANSWER
Answered 2020-May-28 at 14:26The issue with your code is that it stops after it finds the first solution - more specifically, your code will never change an assigned value to a cell unless it is wrong. This is standard backtracking that you've implemented. What you need to do is, once you find one solution, you need to force your code to use other values and see if it also returns a valid solution.
Let's say this is the last row of your sudoku (where you're missing the last value), and your count is currently 0 (i.e. no solution so far):
QUESTION
I'm practising my little Python skills by programming a Sudoku-Solver Algorithm.
I implemented unit test to. Now I have implemented the solver, that returns a solved matrix of the Sudoku, and I check it in the unit tests.
But the result var assigned by the return of the solver result None. I made some Breakpoints and at the end of the solver the return value ist the right solved matrix. Can someone give me a hint in which point I'm missing something?
Thanks a lot!
My sudoku Algorithm class:
...ANSWER
Answered 2020-May-11 at 15:57I found the answer. The problem was that the algorithm do not know when there are some free cells to fill. So the recursion do not stop at the end of the solution. If I insert a control that checks if there are the free cells the algorithm works.
Here my updated solution:
class Cell Utilities:
QUESTION
I'm building a react app which solves a sudoku board and visualises the solving algorithm.
I'm trying to convert the class components to functional components, but am not sure how to get the state changes working.
The problematic code is:
...ANSWER
Answered 2020-May-01 at 13:12Try the useAsyncEffect
hook from here
I wish it was part of the standard React library
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