@Scrooble the new avatar looks suspiciously like a kipper :)
@ASCII-only I'm still not sure when you say "group" whether you mean the supergroup or the subgroup. It may be easier if you paste the problem's text here.
λ dub test
Running custom 'unittest' configuration.
Performing "unittest" build using C:\D\dmd2\windows\bin\dmd.exe for x86.
d-unit 0.9.0: target for configuration "library" is up to date.
datache ~master: target for configuration "unittest" is up to date.
To force a rebuild of up-to-date targets, run again with --force.
Running .\datache.exe
Edit source/app.d to start your project.
I think I have a design in mind: I can use a combination of modgrammar and some transformation rules. It'll be a hack, but if it works: I have a semi-esoteric language
Given some lists of strings containing only lowercase letters, slice the first few(1 to length)characters for each string in each list, so that when each list is joined without separating symbol, it can't be any other list's possible expression.
For example, for {[ab,cd],[abcd]}, {ac,a} is valid...
Define f(a,b) := a if b=1; a^f(a,b-1) if b>1 for positive integers a and b, given four positive integers a,b,c,d, compare f(a,b) and f(c,d).
Your program should output three constant values to mean "greater", "less" and "equal".
Samples:
a b c d f(a,b) output f(c,d)
3 2 2 3 27 > 16
4 ...
Use that goodn't meme
There is currently a meme on the internet that consist of taking a sentence, reverse the meaning and adding n't at the end. For example, I am small becomes I am talln't
Challenge
For the sake of the challenge, we'll simplify this : Your task will be to detect whenever the...
Rotonyms 1
ROT13 ("rotate by 13 places") is a simple letter substitution cipher that replaces a letter with the 13th letter after it, in the alphabet. So, A becomes N, N becomes A, B <-> O, and so on to M <-> Z.
ROT13('abcdefghijklmnopqrstuvwxyz') == 'nopqrstuvwxyzabcdefghijklm'
A "Rotonym"...
Rotonyms 2
A "Rotonym" is a word that ROT13s into another word (in the same language).
For this challenge, we'll use an alternate definition: a "Rotonym" is a word that circular shifts/rotates into another word (in the same language).
For example:
'stable' < 'tables' < 'ablest'
'abort' > 'tab...
99 bugs in the code
The adaption of "99 bottles of beer on the wall" for computer science where the bugs increase instead of the bottles decreasing is often re-posted around the internet. Example T-Shirt Here.
I think it'll be interesting to see potential recursion and random number generation ...
Hello, I have some questions regarding a possible challenge (that I would like to create), and would it be possible that someone can answer them for me
@DJMcMayhem : Thanks. So, there is a challenge on BF interpreter , but was written in 2011 and has some limitations and couple of restrictions. Now I am curious if I published a challenge on BF interpreter would it marked as duplicate ?
^ Assuming that I remove all restrictions and keep it plain BF interpreter
huh. PyCharm seems to use different interpreter than I specified. It installs packages to wrong directory...
and it doesn't detect pip again.
this is becoming annoying
pip.exe exists, but the module is undefined. I had it before. don't remember what was/is wrong
C:\Windows\system32>pip
Traceback (most recent call last):
File "d:\programy\python\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "d:\programy\python\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "D:\Programy\Python\Scripts\pip.exe\__main__.py", line 5, in <module>
ModuleNotFoundError: No module named 'pip'
When the main difficulty is the input format or means, rather than the actual computations, it is usually a sign of a not very interesting challenge — Luis Mendoyesterday
I say "restrictions like that can make sense", and warned against making generalizations that might hinder certain types of challenges. Perhaps the challenge is to implement some bash utility, such as cat or similar. I don't think it's a bad thing to limit input to only STDIN in that case.
Is this region concave?
Definitions
An N by N matrix of positive integers is (for the purposes of this challenge):
concave if all the integers that are on the Kth and (N-K+1)th rows and columns (1-indexed) are strictly higher than those on the (K+1)th and (N-K)th rows and columns, for any int...
Is this a Weyr matrix?
There's a type of matrix called the Weyr canonical form. A characteristic example is:
A Weyr matrix is an upper triangular matrix which:
has diagonal blocks λI of non-increasing size;
and has superdiagonal blocks consisting of an identity matrix sitting on top of a 0...
Write code which when given a list of values and a positive integer (n)
outputs the cartesian product of the list with itself n times.
This is equivalent to writing nested for loops over the list
e.g. in python2
for x1 in list:
for x2 in list:
for x3 in list:
...
...
16b¯A.Fe¯A is definitely a no. That's the reason ^ is another delimiter, so as to not clash with hex. I might add that in after I get the basics working.
In fact, E/e and J/j are special-cased in Dyalog APL, so 1E2 is a single number but 1F2 is 1 F2. I personally don't like it, because it makes adding additional number formats a breaking change.
@Zacharý I'd use c2 for the square of the speed of light.
@Zacharý Well, it is somewhat of an unusual number, but it makes sense. 16b_a.f is valid in J, but you can't use exponential and complex format with custom bases.
@ASCII-only Yes, it is just an extension of the traditional APL/J format for complex numbers by allowing other bases in the mantissa, exponent-base, and exponent.
Use that goodn't meme
There is currently a meme on the internet that consist of taking a sentence, reverse the meaning and adding n't at the end. For example, I am small becomes I am talln't
Challenge
For the sake of the challenge, we'll simplify this : Your task will be to detect whenever the...
99 bugs in the code
The adaption of "99 bottles of beer on the wall" for computer science where the bugs increase instead of the bottles decreasing is often re-posted around the internet. Example T-Shirt Here.
I think it'll be interesting to see potential recursion and random number generation ...
Is this region concave?
Definitions
An N by N matrix of positive integers is (for the purposes of this challenge):
concave if all the integers that are on the Kth and (N-K+1)th rows and columns (1-indexed) are strictly higher than those on the (K+1)th and (N-K)th rows and columns, for any int...
Is this a Weyr matrix?
There's a type of matrix called the Weyr canonical form. A characteristic example is:
A Weyr matrix is an upper triangular matrix which:
has diagonal blocks λI of non-increasing size;
and has superdiagonal blocks consisting of an identity matrix sitting on top of a 0...
Write code which when given a list of values and a positive integer (n)
outputs the cartesian product of the list with itself n times.
This is equivalent to writing nested for loops over the list
e.g. in python2
for x1 in list:
for x2 in list:
for x3 in list:
...
...
