Cumbersome I/O formats
Generally, allow flexible input and output formats. People want to write code to do your task of, say, composing permutations, not reading/writing numbers in a particular semicolon-separated format, or from a file, or with input validation. For code golf, it's annoying whe...
Consider an array of integers A having N elements in which each element has a one- to-one relation with another array element.
For each i, where 1≤i≤N there exists a 1−>1 relation between element i and element N−i+1
The Task is to perform following operations on this array which are as follows:...
The Hamming distance between two strings of equal length is the number of positions at which the corresponding symbols are different.
Let P be a binary string of length n and T be a binary string of length 2n-1. We can compute the n Hamming distances between P and every n-length substring of T ...
In March 25, 1821, Greece fought its great war of independence. In order to honor this, your task is to print the Greek national anthem:
Σε γνωρίζω από την κόψη
του σπαθιού την τρομερή.
Σε γνωρίζω από την όψη
που με βιά μετράει τη γη.
Απ' τα κόκκαλα βγαλμένη,
των Ελλήνων τα ιερά!
Και σαν πρώτα α...
Introduction
Suppose you want to compute the tail maxima of a list of numbers, that is, the maximum of each nonempty suffix.
One way to do it is to repeatedly choose one number and replace it by a higher number occurring after it, until this is not possible anymore.
In this challenge, your task ...
Simplify Brainf**k
We'll call a language BF equivalent if it emits a simple substitution mapping to and from BF. For example, consider the hypothetical language SimpleBrain which is identical to BF except that it does not include + or >, but instead has }. It emits the following mapping to BF:
...
Code a Bitwise Cyclic Tag Interpreter!
On the Esolangs page for Bitwise Cyclic Tag, they show how the data-string changes. Your task is to make a Bitwise Cyclic Tag interpreter that does this.
Shortest code wins!
In Ask Ubuntu chat, there are some users (e.g. cl-netbox and Thomas Ward) of which the user icon is recently displaying wrongly most of the time:
cl-netbox' icon on all sites id a blue square with the white letters cl. It shows up this way in the user list on the right and even in the popup ...
