Are these the same time? code-golf time decision-problem
Context
When asked about the time (i.e. hours and minutes), people naturally reply with any one of a given set of fairly common sentences:
(A) it is M past H
(B) it is M to H
(C) it is H minus M
Where M above refers to some amount of ...
TL;DR: In what circumstances is it ok (by CGCC and politeness standards) to edit directly a post (be it challenge, answer, sandbox question, etc), assuming the edit is done in good faith?
I know people can rollback edits and further edit a post, but in the meantime that goes from the unwanted ed...
I'm working on a King of the Hill challenge for some point in the next couple of months. (Sneak Peek)
The problem I have is that last time I ran one it was pretty ambitious, and it became a heavy time-sink while the challenge was active. I've got a job and a family, and pressures of maintaining ...
Task
A date can be compactly represented in a 6-character string in the format ddmmyy where the first two characters (dd) represent a day, the 3rd and 4th characters (mm) represent a month and the last two characters (yy) represent a 20XX year. Given a string with 6 characters in [0-9] determine...
Is it a Happy Number? code-golf decision-problem
A repost of this challenge (if I got the policy right).
Given a single positive integer (which can also be taken as a list of digits or a string), output whether the number terminates at 1 . Truthy/falsy follows the language's convention, or you ...
Multiplayer Rock-Paper-Scissors
Objective
Given a nonempty multiset of Rock, Paper, and Scissors, output the winning figure according to the special rule.
Background
For a multiplayer RPS, if all three figures come out, usually it's considered a draw. But by that rule, the probability to draw...
\$\Theta(N\cdot\sqrt N)\$ sort code-golf restricted-complexity array-manipulation
The challenge is to implement an algorithm that sorts an array of distinct positive integers in ascending order. You may input the array and output the result using the default IO methods.
However, the worst-case ...
Word Grid Puzzle Iterator
I commonly see an advert for a word-based game, where by removing a word the remaining letters "collapse", horizontally and vertically, leading to further words being findable.
The challenge is to take in a grid and a word as an input, and output the collapsed grid aft...
Given a compressed string \$s\$ made of printable ASCII characters (32 to 126), your task is to print or return the original text by applying this simple decompression algorithm:
Start with \$k=0\$
Look for the first occurrence of \$k\$ in \$s\$ and the sub-string \$s'\$ consisting of the \$2\$...
In this challenge, submissions will be programs or function which, when given an emoticon such as :-), :(, or :D, will rate their happiness from 0 to 3.
An emoticon will be one of the following:
:(: 0
:|: 1
:): 2
:D: 3
Emoticons may also have noses (a - after the :).
Test cases:
:( -> 0
:...
Inspired by I reverse the source code, ...
Your task, if you wish to accept it, is to reverse text and mirror select characters. Yes, yes, I know. Very surprising.
Input
A string, stdin, an array of characters, or any other source of text.
Output
The reversed text with some characters mirror...
Check
As input you will receive
An integer \$a\$
A list of integers that is infinite and strictly-monotonic
Your program should check (in finite time) if \$a\$ appears the list.
You should output one of two disctinct values. One if \$a\$ appears in the list and the other if \$a\$ does not....
