posts as q and posts as a, then do q.id and a.id. 
0
99, 283 bytes
Yes there is a language called 99
999 9 9
99 99999999 999 9
99
99 99999 9 999 9
99
99 99 999 999999
99
99
99 9999999 9999 999 9
99
99 99 9999999 9 999 9 999 9 999 9
99
99 99 999999 9 999999 9
99
9999
99 99999 999 999999 999 9
99
99 9999999 9999 9 999 9
99
99 99 999999 9
99
99 99 999...
Noxan, 16 bytes
¶"Hello, World!
New language!
Task
Given a finite permutation output its inverse.
You may take input and output in any reasonable format equivalent to a list of natural numbers. You may choose to use 0 indexing or 1 indexing. Your input and output format should be the same. You may assume a permutation has at least 1 elemen...
0
Ragged slice
Your task is to slice a ragged list. Your input is a ragged list and two lists of integers, corresponding to the beginning index and end index of the slice, where the beginning index is inclusive and the end index is exclusive.
Explanation
Let's start from the very basics. How does r...
0
flax, 1 byte
⍋
Builtin \o/
Unlike Jelly, flax is 0-indexed.
0
Hello Shue! (Cops)
In this cops-and-robbers challenge, your task is to write a program h that outputs "Hello Shue!". Next, you have to choose a string i and also write a Shue program p, so that p(i)=h. Your score is len(p)+len(i). Your answer will contain the language of p, i and your score (plea...
0
A band matrix is a matrix whose non-zero entries fall within a diagonal band, consisting of the main diagonal and zero or more diagonals on either side of it. (The main diagonal of a matrix consists of all entries \$a_{i,j}\$ for which \$i=j\$.) For this challenge, we will only be considering squ...
0
Flipping Burnt Pancakes, but Optimally!
This is based on the Burnt Pancake problem.
For a given array, determine the minimal number of flips needed to be made burnt pancake sorting.
Note that this is an NP-HARD problem. You may not make an approximation algorithm.
Testcases
[1,2,3,4,5] returns 0,...
0
0
Is it irrational?
Your task is to make a program that decides if a real number is irrational or not. As stated, this is obviously impossible, so instead we will use the following definition:
p is your program, which takes in a decimal expansion of a number, and returns 0 or 1. If x is an irration...
0
How many ways are there to play the notes?
You are given a broken keyboard which obeys the following rules:
Each key press takes a set amount of time to be processed. Specifically, the nth note only sounds n seconds after its key is pressed.
Only one key can be pressed at a time. So it is imposs...
In kinematics, absement (or absition) is a measure of sustained displacement of an object from its initial position, i.e. a measure of how far away and for how long. The word absement is a portmanteau of the words absence and displacement. Similarly, absition is a portmanteau of the words absence and position.Absement changes as an object remains displaced and stays constant as the object resides at the initial position. It is the first time-integral of the displacement (i.e. absement is the area under a displacement vs. time graph), so the displacement is the rate of change (first time-derivative...
