Grouping Array Data
Given an integer matrix a and a nonnegative integer i, output a mapping b that maps the distinct values in the ith column of a to rows of a who have that value in the ith column.
You may assume that i is in the half-open range [0, num_cols(a)) (or [1, num_cols(a)] if you cho...
Adding this.txtSource.MaxLength = 0; after line 166 (this.txtSource.KeyDown += new System.Windows.Forms.KeyEventHandler(this.sourceKeyDown);) in Mainform.Designer.cs will work.
Are there esoteric languages out there directly based on turing machines? I want to wrack my brain on a computation model that isnt really common out there
brainfuck comes close, but its still a structured programming language
@EriktheOutgolfer "e). OTOH I'm not the only person who can cast a reopen vote: you're welcome to make your case in the chat room and get some third, fourth, etc. opinions"
I personally think it's a dupe. For any submission there, you can just stick a wrapper around the program/function to take a number n and return [n] * n and pass that into the inner program, and I doubt there would be many other approaches that aren't basically the same thing
It depends on whether or not competitive answers there just try everything possible (either the naive way or the DP way) because then you can just add extra rules, though that might hit TLE.
@EriktheOutgolfer True, but here it is pretty clear. If the brackets are broken by a line break (or a diamond — diamonds are equivalent to line breaks) then it is an array. Otherwise it is index/axis.
@HyperNeutrino It doesn't work either. ⍵ requires braces, and ⍉ will take everything on its right as argument, i.e. it transposes the matrix product of ⍵ and ⍵.
@HyperNeutrino No it shouldn't, but you can write it as a dfn (braces-style) first, and then convert it to tacit form (like Jelly) to save some characters.
@EriktheOutgolfer Having the rule that a parenthesis broken over multiple lines just means that each (non-empty) line is parenthesised and then they are put next to each other has an additional benefit in that it will enable you to write trains that span multiple lines.
@HyperNeutrino I'm happy to hear that. Maybe it's time for me to start a new class of my weekly lessons so people have a chance to start from scratch again?
CMC: Given two positive integers x and y, return the 1-indexed xth element of 0, 1, 2, ..., y-1, y, y-1, ..., 2, 1, 0, -1, -2, ..., -y+1, -y, -y+1, ..., -2, -1, 0, 1, 2, ... etc. Alternatively, non-negative x and 0-indexed.
@Adám Possibly, though that depends on how many people want to do that. I can only participate every other week and usually not until the latter half.
If everyone else is fine with that that would be great :D idk if it will work next year though because that is right after school for me which happens to be, suitably enough, during CS club, but next year I'm partially running that so idk if it will work. hopefully will
@EriktheOutgolfer Right, right, now I remember. Exactly because it makes no difference to parenthesise the "cars" in a train, you could put each car on a separate line:
avg←+⌿÷1⌈≢ or:
avg←(
+⌿
÷
1⌈≢
)
Notice how nice division looks! You could almost think it was a 2D language.
Asked on Stack Overflow, but they suggested to move it here
A while ago I was reading about quines. It made me wonder if it possible to write a macro in C which will print itself, without writing any function such as main. every piece of code should be only in macro. After a few attempts, I coul...
Grouping Array Data
Given an integer matrix a and a nonnegative integer i, output a mapping b that maps the distinct values in the ith column of a to rows of a who have that value in the ith column.
You may assume that i is in the half-open range [0, num_cols(a)) (or [1, num_cols(a)] if you cho...
