text stringlengths 180 608k |
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[
**Closed**. This question needs [details or clarity](/help/closed-questions). It is not currently accepting answers.
---
**Want to improve this question?** Add details and clarify the problem by [editing this post](/posts/22640/edit).
Closed 6 years ago.
[Improve this question](/posts/22640/edit)... |
[Question]
[
**Closed**. This question needs [details or clarity](/help/closed-questions). It is not currently accepting answers.
---
**Want to improve this question?** Add details and clarify the problem by [editing this post](/posts/192803/edit).
Closed 4 years ago.
[Improve this question](/posts/192803/edi... |
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[
You are chained to a chair. Underneath you is a huge volcano. A 12-hour clock next to you ticks ominously, and you see that it has wires leading from the back up to a chain, which will drop you into the center of the earth. Taped to the clock is a note:
>
> Each clock hand has an electrode. When bot... |
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In the musical rendition of Les Miserables, a song appears called "Red and Black." Here is part of that song:
>
> Red - the blood of angry men!
>
>
> Black - the dark of ages past!
>
>
> Red - a world about to dawn!
>
>
> Black - the night that ends at last!
>
>
>
[Source.](http://lesmisera... |
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**Your Task**
Given a list of words, check if they form a valid word grid. They form a valid grid if there are **N** words with **N** letters and they spell the same words vertically as they do horizontally. The words can be given in any order. `[FILE, ICED, LEAD, EDDY]` = `True` and `[FILE, LEAD, ED... |
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Imagine you are working on a 3D adaptation of the classical video game [Asteroids](http://en.wikipedia.org/wiki/Asteroids_%28video_game%29). Your task is to write an algorithm that can create a random 3D asteroid.
This is a popularity contest, not code golf. Write nice code and create interesting res... |
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[
The task is to calculate the average "funniness" of a given number given the following scoring system:
* 1 point for each "420" in it
* 2 points for each "69" in it
* 3 points if its a palindrome (doesn't count if it's just a single digit)
* 4 points if it has (not for each) "800813"
* 5 points for e... |
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Generative AI is here! It's great for certain things, but it has a few problems. Not only has it broken our Stack Exchange community, it also makes mistakes. For example, when you ask Bing AI if it is sentient, Bing says [](https://i.stack.imgur.com/djtZG.j... |
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Print this tree:
```
1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
15 20 15
7 21 35 35 21 7
8 28 56 70 56 28 8
9 36 84 126 126 84 36 9
252
462 462
924 ... |
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[
Your task is to write some code that outputs an OEIS sequence, and contains the name of the sequence in the code (`A______`). Easy enough right? Well here's the catch, your code must also output a second separate sequence when the name of the sequence in the code is changed to the name of the second ... |
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A rotation ["is made by splitting a string into two pieces and reversing their order"](https://codegolf.stackexchange.com/q/121522/48934). An object is symmetrical under an operation if the object is unchanged after applying said operation. So, a "rotational symmetry" is the fact that a string remain... |
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We define a map as a set of key-value pairs. For this challenge, you need to take each of the values and assign them to a randomly chosen key.
* You must *randomly* shuffle the values, and output the resulting map. This means that each time we run your program, we have a chance of getting a different... |
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[
## Brief description of the game
In the game [Otteretto Classic](https://otteretto.app/) (which you can test directly in your browser; try it!) the player has to form palindromic sequences using adjacent cells on a square grid. Each cell has one of five possible colours, which we will denote by the l... |
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## Background
You have again x4 been given the task of calculating the number of landmines in a field. But this time, the field is not a number field... it's a field of letters. Our landmine letter operator is sick and requires you to cover for them. They left you the following note:
>
> Things work... |
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Output the **current time of day** as [Swatch Internet Time](https://en.wikipedia.org/wiki/Swatch_Internet_Time).
Specifically, output a three-digit (zero-padded) number of "[.beats](https://en.wikipedia.org/wiki/Swatch_Internet_Time#Beats)" (1000ths of a day) which represent the current time of day ... |
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[
Your mission, if you choose to accept it, is to construct a simple truth evaluator for the following logical operators:
```
----------------------------------------------------------------------------------
Logical Name | Gate Name | Symbol | Symbol Name | Truth Table
-------------... |
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I've been a fan of *My Little Pony: Friendship Is Magic* for a long time, and very early on I created a pony version of myself also called [Parcly Taxel](https://derpibooru.org/images/2775280) (warning: may be too cute to look at). The symbol below is her "[cutie mark](https://mlp.fandom.com/wiki/Cut... |
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[
I'm writing a program that takes a number from input (call it x), loops from 0 to (x - 1) (let's call our iterator y) and prints \$y^x+x\$ for each y.
After the loop, it then prints "SUM: N" (without a newline) where the N is the sum of the all of the previously printed values.
How can I make the cod... |
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[
# Premise:
For those in networking, you've most likely sent a ping to or from some device to make sure everything's properly connected. Cisco, a popular company in networking[citation needed], has a command for it in their IOS that looks like this:
[](h... |
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[
**Problem**
Given a value n, imagine a mountain landscape inscribed in a reference (0, 0) to (2n, 0).
There musn't be white spaces between slopes and also the mountain musn't descend below the x axis.
The problem to be solved is: given n (which defines the size of the landscape) and the number k of p... |
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[
There are 8 Australian states and territories, each with a 2 or 3 letter abbreviation:
* ACT: Australian Capital Territory
* NSW: New South Wales
* NT: Northern Territory
* QLD: Queensland
* SA: South Australia
* TAS: Tasmania
* VIC: Victoria
* WA: Western Australia
>
> Your task is to write a funct... |
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`{}`is the empty set. You may use `()` or `[]` if you choose.
We aren't going to rigorously define "set", but sets all satisfy the following properties:
Sets follow the usual mathematical structure. Here are some important points:
* Sets are not ordered.
* No set contains itself.
* Elements are eith... |
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This task is about writing code to compute a probability exactly. The output should be a precise probability written as a fraction in its most reduced form. That is it should never output `4/8` but rather `1/2`.
For some positive integer `n`, consider a uniformly random string of 1s and -1s of length... |
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[
Let us define the Fibonacci sequence as
```
F(1) = 1
F(2) = 2
F(n) = F(n - 2) + F(n - 1)
```
So we have the infinite sequence `1,2,3,5,8,13,`... It is well known that any positive integer can be written as a sum of some Fibonacci numbers. The only caveat is that this summation might not be unique. T... |
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For each character in your program, the program with that character removed must produce a number smaller than the program with the next character removed. Your base program isn't required to do anything, and may be invalid.
An example submission could be `abcd`, where `bcd` outputs 1, `acd` outputs ... |
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Given an integer `n >= 1` as input, output a sample from the discrete triangular distribution over the integers `k`, for `1 <= k <= n` (`1 <= k < n` is also acceptable),
defined by `p(k) ∝ k`.
E.g. if `n = 3`, then `p(1) = 1/6`, `p(2) = 2/6`, and `p(3) = 3/6`.
Your code should take **constant expecte... |
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Based on the ["Pretty Ugly"](https://i.pinimg.com/originals/87/ef/ec/87efecc2e9b48e35b1b9943760ac23b6.jpg) poem.
Input consists of a number of stanzas (positive integer), and four arrays/lists of strings, called the "negatives", "negations", "positives", and "filler" sentences.
You must output a "pre... |
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[
**This question already has answers here**:
[Is this number a prime?](/questions/57617/is-this-number-a-prime)
(367 answers)
Closed 6 years ago.
[Bertrand's postulate](https://en.wikipedia.org/wiki/Bertrand%27s_postulate) states that there is always at least 1 prime number between **n** and **... |
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I was trying to find the shortest code possible that given a number n, returns the next prime palindrome number (limited to below 100000). If the number itself is a prime palindrome, the code should return the next one.
Write the shortest program/function that, when given an input `n` (less than `100... |
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[
[Cops' challenge](https://codegolf.stackexchange.com/q/248188/66833)
This [cops-and-robbers](/questions/tagged/cops-and-robbers "show questions tagged 'cops-and-robbers'") challenge challenges the Cop to write a non-empty program that, when run, produces some non-empty output in language A, and, when... |
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Peano numbers represent nonnegative integers as zero or successors of other Peano numbers. For example, 1 would be represented as `Succ(Zero)` and 3 would be `Succ(Succ(Succ(Zero)))`.
# Task
Implement the following operations on Peano numbers, at compile time:
* Addition
* Subtraction - You will neve... |
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## Story
Martians have been observing [Aussie rules football](https://en.wikipedia.org/wiki/Australian_rules_football) matches from space with great curiosity. Having totally fallen in love with the game, they have been inspired to start their very own football league. However, being dim-witted creat... |
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## Background
There's a terrible problem in my console - the quotes never get included inside the arguments! So, when given this argument:
```
["abc","def","ghi","jkl"]
```
it says that the argument is like this:
```
[abc,def,ghi,jkl]
```
It would be very nice if you can fix this problem!
## Challeng... |
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[
Not to be confused with [this question](https://codegolf.stackexchange.com/questions/103403/print-the-f-%C3%97-f-times-table).
You need to draw a times table (also known as [Cremona's method for cardioid generation](https://en.wikipedia.org/wiki/Cardioid#Cardioid_as_envelope_of_a_pencil_of_lines)) as... |
[Question]
[
Take two inputs, a non-empty vector/list containing digits `1` and `2` and a string (no, you may not take `0/1` instead). The string will be one of the following (in lowercase, exactly as written below:
```
increasing
decreasing
ones
twos
all
none
```
If the string is \_\_\_\_ then you shall return t... |
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[
Given a the name of a state of the United States as a string (with case), return the number of votes the state has in the [Electoral College](https://en.wikipedia.org/wiki/Electoral_College_(United_States)). Write a full program or function, and take input and output through any default I/O method.
A... |
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### Input:
**Any** Brainfuck program. This includes brainfuck programs with comments such as `+++COMMENT[>+++<-].`.
### Output:
A program in one of the below languages that produces the same output as the Brainfuck program on **all inputs**. It should produce the same output exactly as the [interepre... |
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[
The [Collatz sequence](http://en.wikipedia.org/wiki/Collatz_conjecture) starting from a positive integer n is defined in this way:
* if n is even then divide it by 2 (`n' = n / 2`)
* if n is odd then multiply it by 3 and add 1 (`n' = 3n + 1`)
Repeat the above iteration until n reaches 1.
It is not kn... |
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[
You are given a directed graph in an adjacency dictionary format. This can be whatever format is most natural for your language. For instance, in python, this would be a dictionary with keys of nodes and values which are lists of nodes which that node has an edge to. For instance:
```
G={1: [2, 3], 2... |
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[
I am referring to Project Euler #12. Write the solution in any language you want, but consume the least amount of memory while executing. Running time is not measure in this case.
>
> The sequence of triangle numbers is
> generated by adding the natural
> numbers. So the 7th triangle number
> wo... |
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[
The sequence discussed in this challenge is a variant of the Descending Dungeons sequence family. Specifically, the sequence generation rules:
```
(A_b = A's base 10 representation read as a base b number, A = A_10)
A(0) = 10
A(n) = 10_(11_(12_(...(n+9)_(n+10))))
```
Your goal is to make a program wh... |
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[
Your task is to determine the length of the longest descent down a "mountain" represented as a grid of integer heights. A "descent" is any path from a starting cell to orthogonally adjacent cells with strictly decreasing heights (i.e. not diagonal and not to the same height). For instance, you can mo... |
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[
Almost all digital camera sensors are organized in a grid of photosensors. Each photo sensor is sensitive for one of the [primary colors](https://en.wikipedia.org/wiki/Primary_color): red, green and blue. The way those photo sensors are organized is called the [Bayer filter](https://en.wikipedia.org/... |
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[
Continuation of [this challenge](https://codegolf.stackexchange.com/questions/77254/create-a-boolean-parser) because the author is gone and the question is closed.
---
What you need to do is create a Boolean parser.
---
Boolean expressions, in case you haven't heard of them yet, have two inputs and o... |
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## Problem statement
The task is to write the shortest R statement to count the cells (rows \* cols) in an instance of the R type `numeric data.frame`. For example, the `data.frame` which would be displayed as
```
a b c
1 1 2000 NA
2 2 2000 NA
3 3 2000 1
4 4 2000 Inf
```
has 12 cells.
## Input
... |
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[
Your challenge (if you choose to accept it) is to implement big integer multiplication in the shortest code possible.
Rules:
* Take two integers (decimal form) as ASCII strings from the command line parameters of your program. If your language doesn't support command line parameters, I'll accept stdi... |
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An even distribution number is a number such that if you select any of it's digits at random the probability of it being any particular value (e.g. `0` or `6`) is the same, \$\frac1{10}\$. A precise definition is given later on.
Here are a few examples:
* \$\frac{137174210}{1111111111} =0.\overline{1... |
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[
Part of the [**Code Golf Advent Calendar 2022**](https://codegolf.meta.stackexchange.com/questions/25251/announcing-code-golf-advent-calendar-2022-event-challenge-sandbox) event. See the linked meta post for details.
---
As a Christmas gift, you were given a toy solar system. In this toy, all the orb... |
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[
*This is the robbers' thread. For the main rules to this challenge see the [cops' thread](https://codegolf.stackexchange.com/questions/251450/polyglot-quiz-cops-thread)*
In this challenge, robbers will choose a cop's *vulnerable* or *safe* post and try to figure out a pair of languages such that they... |
[Question]
[
Draw the following in the fewest bytes possible:
```
-------------------------
| | ABC | DEF |
| 1 | 2 | 3 |
-------------------------
| GHI | JKL | MNO |
| 4 | 5 | 6 |
-------------------------
| PQRS | TUV | WXYZ |
| 7 | 8 | 9 |
--------------... |
[Question]
[
# Privileged Strings
The set of *privileged strings* is defined recursively as follows.
* All strings of length 0 or 1 are privileged.
* A string `s` of length at least 2 is privileged, if there exists a shorter privileged string `t` that occurs in `s` exactly twice, once as a prefix and once as a su... |
[Question]
[
The task is to count the number of distinct substrings of length k, for k = 1,2,3,4,.....
**Output**
You should output one line per `k` you manage to complete with one number per output line. Your output should be in order of increasing `k` until you run out of time.
**Score**
Your score is the highe... |
[Question]
[
Inspired by Greg Martin's "[Shiny cryptarithm](https://puzzling.stackexchange.com/q/122716/65757)" puzzle.
A [cryptarithm](https://en.wikipedia.org/wiki/Cryptarithm) is a game consisting of a mathematical equation among unknown numbers, whose digits are represented by letters of the alphabet. The goa... |
[Question]
[
I have previously posted a challenge, [smallest number of steps for a knight in chess](https://codegolf.stackexchange.com/q/251050/113952).
Now I would like to go a step further by adding the possibility to choose your piece.
If you place a piece on any square of a chessboard, what is the smallest nu... |
[Question]
[
Given a `MM/DD` date (`12/24`) and a start/end date range (`11/01 - 06/24`), figure out if the date is within the listed date span.
Date ranges can be sequential (`05/01 - 11/01`) or wrap around to the next year (`11/01 - 05/01`).
Examples:
* `12/24` is in `11/01 - 06/24` = True
* `06/24` is in `11/0... |
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[
The goal of this challenge is to use [Euler's method](https://en.wikipedia.org/wiki/Euler_method#Derivation) to approximate the solution of a differential equation of the form f(n)(x) = c.†
The input will be a list of integers in which the *n*th value represents the value of f(n)(0). The first intege... |
[Question]
[
It is December 2014, and 2015 has almost started. However, it appears not everyone has realized this.
[](http://www.gocomics.... |
[Question]
[
I work a standard nine to five. Monday through Friday. I take a half hour for lunch from 12:30 to 13:00.
Write me a program which, when run, calculates the percentage of the working week that I have completed at the current moment.
Rules
* Only count time actually spent working. I am punctual and do ... |
[Question]
[
Some numbers can be represented as perfect powers of other numbers. A number x can be represented as x = base^power for some integer base and power.
Given an integer x you have to find the largest value of power, such that base is also an integer.
```
Sample Input:
9
Sample Output:
2
```
[Answ... |
[Question]
[
## Challenge:
Given a list of nonempty lists of integers, return a list of tuples of the following form: First list tuples starting with each element of the first list followed by the first element of every subsequent list, so the ith tuple should be `[ith element of first list, first element of seco... |
[Question]
[
Given Color codes in CMYK, convert it to RGB value.
**Input:**
*string of 4 integers(ranging from 0-100) separated by space*
```
86 86 0 43
28 14 0 6
0 41 73 4
```
**Output:**
```
#141592
#ABCDEF
#F49043
```
Shortest code wins!
>
> ***HINT:** For converting CMYK to RGB you may use formula such as... |
[Question]
[
Let's assign the numbers 0 through 94 to the 95 [printable ASCII characters](http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters):
```
!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
```
Space is 0, `!` is 1, and so on until `~` is 94. We'll a... |
[Question]
[
## Input/Output:
**Input**: A uniformly random, infinitely long, string of '0's and '1's, taken from stdin. The string is assumed to be truly random, not pseudo-random. It is uniform in that each character is equally likely to be a '0' or '1'.
Careful! The input is infinitely long, so you can't store... |
[Question]
[
# Backstory [which is not true]
A piano is set up like this:
[](https://i.stack.imgur.com/JidN0.gif)
However, on my piano, all of the black keys are broken!
I still want to be able to play som... |
[Question]
[
*This challenge is inspired by [Blink the CAPS LOCK](https://codegolf.stackexchange.com/questions/110974/blink-the-caps-lock) by [zeppelin](https://codegolf.stackexchange.com/users/61904/zeppelin).*
Most webcams feature a small integrated LED light, indicating if the webcam is in use, as controlled b... |
[Question]
[
Here is a tic-tac-toe board:
```
a b c
| |
1 - | - | -
_____|_____|_____
| |
2 - | - | -
_____|_____|_____
| |
3 - | - | -
| |
```
Given a set of moves, print the board with the tokens on.
Input will be take... |
[Question]
[
# Background
This is a continuation of my [earlier challenge](https://codegolf.stackexchange.com/questions/42997/magnetic-sculptures), where the task was to compute the shape of a sculpture obtained by dropping magnets into a huge pile.
Good news: the eccentric artist liked your work, and has another... |
[Question]
[
Seem like GolfScript wins all of these. So you can't beat them, join them.
**Write an Self-Contained Golfscript Interpreter**
I'm using the definition of self-contained to mean, a single program:- So no passing the buck to some external program to do the work for you.
**Test Cases:**
Strings and... |
[Question]
[
## inputs / outputs
your program/function/routine/... will be a predicate on two tuple sequences; call it relation `≡`. for the purpose of simplicity we use natural numbers:
* the input will be two list of pairs of numbers from ℕ (including 0); call them `Xs` and `Ys`
* the output will be a "truthy" ... |
[Question]
[
**Definitions:**
A palindrome is a string which reads the same backward or forward (not counting spaces or special characters), such as "madam" or "Sorel Eros".
A date is said to be a palindrome when its dd-mm-yyyy format is a palindrome (or any other local representation).
Two strings are said to ... |
[Question]
[
Given a positive integer *N* ("virality"), your program should create an ASCII-art drawing of a tree with two branches of length *N* extending downwards and/or rightwards from the top-left corner.
The direction taken by each branch *after the first asterisk* can be either rightwards or downwards, and... |
[Question]
[
A collection of N dimensional coordinates are provided. An example is below:
```
{2,3,4}
```
This can be thought of as a 3 dimensional array with 2x's, 3y's and 4z's; there may be any number of dimensions. In the example, there are 24 total nodes. Each node can be indexed using {x,y,z}. To access the... |
[Question]
[
The challenge is to detect missing integer sequences of files or directories. You have a directory filled with files/directories that are named as integers.
The files/directories are generated from multiple threads yet the job did not complete - there are therefore gaps in the sequence.
The input is... |
[Question]
[
# THE TASK
### DEFINITIONS
Consider the points {1,2,3,4,5} and all their permutations. We can find the total number of possible permutations of these 5 points by a simple trick: Imaging filling 5 slots with these points, the first slot will have 5 possible numbers, the second 4 (as one has been used ... |
[Question]
[
Thank you guys so much for your help with [calculus](https://codegolf.stackexchange.com/questions/31930/help-me-with-differential-calculus). Now I need some help with my upcoming trigonometry test.
On the test, I'll need to simplify expressions. I’ll be given input like `4sin(x)/(2cos(x))` and will h... |
[Question]
[
## Info
The numbers 1 to 9 each represent a cell in the [Moore's Neighbourhood](http://en.wikipedia.org/wiki/Moore_neighborhood), with 5 being the central cell.
So:
```
123
456
789
1={-1,-1} 2={-1, 0} 3={-1, 1}
4={ 0,-1} 5={ 0, 0} 6={ 0, 1}
7={ 1,-1} 8={ 1, 0} 9={ 1, 1}
```
## The Challenge
You may ... |
[Question]
[
A *2-way universal logic processor* (2ULP) is a network of logic gates that takes two input wires `A` and `B`, as well as four other inputs `L_`, `L_a`, `L_b`, and `L_ab`, and produces a single output `L(a, b)` using the four `L` inputs as a truth table function:
* The 2ULP returns `L_` if `A` and `B... |
[Question]
[
[Related](https://codegolf.stackexchange.com/questions/255460/)
Now you have some dice which you may roll several times. You need a uniform random integer between 1 and \$n\$, inclusive. Show a method that rolls the fewest times and behaves as an \$n\$-sided dice.
Alternative question: Given a set \$... |
[Question]
[
Part of [**Advent of Code Golf 2021**](https://codegolf.meta.stackexchange.com/q/24068/78410) event. See the linked meta post for details.
The story continues from [AoC2018 Day 7](https://adventofcode.com/2018/day/7), Part 2.
[Why I'm pxeger, not Bubbler](https://chat.stackexchange.com/transcript/mes... |
[Question]
[
Much harder than [Can this pattern be made with dominoes?](https://codegolf.stackexchange.com/q/221167/78410)
## Challenge
A grid of width \$w\$ and height \$h\$ is given, filled with 1s and 0s. You can place a domino somewhere on the grid only if both cells are 1. You cannot overlap dominoes. What i... |
[Question]
[
Let's say we have some arbitrary number:
For example 25. We also have some "tokens" (poker chips, money, something similar) with different values.
Values of tokens are
`2; 3; 4; 5.`
"Tokens" are limitless
You need to achieve number 25 using exactly n tokens (for example, 8) and to output all possibl... |
[Question]
[
99 Varieties of Dosa is a popular chain of roadside dosa stalls across South India. This is inspired by a combination of this chain and the classic CodeGolf challenge "99 Bottles of Beer".
Recreate the variant of the menu of the popular '99 Varieties of Dosa' listed below.
*(Note: Despite the name, ... |
[Question]
[
Consider a bridge of length **B** formed by tiles labeled with the digits of the positive integers concatenated. For example, if **B** was 41, then it would look like this:
```
-----------------------------------------
12345678910111213141516171819202122232425
```
Now imagine a train of length **T** ... |
[Question]
[
# Introduction
[Alice](https://github.com/m-ender/alice) is a 2-d language by [Martin Ender](https://codegolf.stackexchange.com/users/8478/martin-ender) which has two different execution modes, *cardinal* and *ordinal*. When the instruction pointer passes *through* a mirror (either `/` or `\`), it sw... |
[Question]
[
You must make a polyglot that outputs its source code in one language and its source code *backward* in another. Unlike the normal rules, you are allowed to read the current file or use a builtin to get the source code of your submission and reverse that in one language. **Your source code cannot be ... |
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The [Hamming distance](https://en.wikipedia.org/wiki/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 ... |
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For this challenge, you will be writing a program or function which outputs (or prints) (in a reasonable format, i.e single string or an array of lines) a chess board which indicates all the possible moves of a piece given an empty board.
---
There are 5 chess pieces (for this challenge a pawn may be... |
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Given two strings, a parent string and a query string respectively, your task is to determine how many times the query string, *or an anagram of the query string*; appears in the parent string, in a case-sensitive search.
Examples of Behaviour
**Input 1**
```
AdnBndAndBdaBn
dAn
```
**Output 1**
```
4... |
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[
[Bulgarian Solitaire](http://en.wikipedia.org/wiki/Bulgarian_solitaire) is a single-player game made popular by Martin Gardner in his [mathematical column in *Scientific American*](http://en.wikipedia.org/wiki/Metamagical_Themas).
You have `N` identical cards, split into piles. You take a card from e... |
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Write a program that takes a binary tree as input, and outputs the deepest node and its depth. If there is a tie, print all involved nodes as well as their depths. Each node is represented as:
`T(x,x)`
`T(x)`
`T`
where `T` is the identifier of one or more alphanumeric characters and each `x` is anoth... |
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[
There are multiple ways to represent a [3D rotation](https://en.wikipedia.org/wiki/Rotation_formalisms_in_three_dimensions). The most intuitive way is the [rotation matrix](https://en.wikipedia.org/wiki/Rotation_matrix) –
$$A=\begin{bmatrix}A\_{11}&A\_{12}&A\_{13}\\A\_{21}&A\_{22}&A\_{23}\\A\_{31}&A\... |
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*Note: This challenge has nothing to do with actual assembly language.*
---
As the head of **Code-Golf Factory Inc.**, you must create an assembly line to generate a specific piece of code. Today, the foreman has asked you to produce quines.
# Specification:
In this challenge, the goal is to write a ... |
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### Intro
More complex than [A square of text](https://codegolf.stackexchange.com/q/88926/43319) since this requires padding and input has unknown data type.
Every year, [Dyalog Ltd.](http://www.dyalog.com/) holds a student competition. [The challenge there](http://www.dyalog.com/student-competition.... |
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There exists an equation, assuming `n` and `x` are positive,
that expresses the relationship between two monomials, one being a common misrepresentation of the other. Many people make the simple mistake of equating these (i.e. `3x^2` and `(3x)^2`).
###... |
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## Introduction
A while back I stumbled across the *tiny encryption algorithm* ([TEA](https://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm)) and since then I have recommended it whenever special cryptographic security properties were un-needed and a self-implementation was a requirement.
Now tod... |
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[
## Index sum and strip my matrix
Given a matrix/2d array in your preferable language
**Input:**
* The matrix will always have an odd length
* The matrix will always be perfectly square
* The matrix values can be any integer in your language (positive or negative)
---
**Example:**
```
1 2 3 4 5 6... |
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Create program that counts the total number of letters common to two names, and finds the product of their lengths, to function as a "love tester."
Conditions: you may not get a 1:1 answer (being 3 out of 3, etc.) output.
## Input
Two names from STDIN or closest alternative.
## Output
Compute `x` as ... |
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[
Write a program that converts a decimal to a mixed, simplified fraction.
Sample input:
```
5.2
```
Sample output:
```
5 + (1/5)
```
The code with the shortest length in bytes wins.
[Answer]
# Ruby, 43
```
y=gets.to_r;puts"#{y.to_i} + (#{y-y.to_i})"
```
Pretty straightforward.
[Answer]
## pytho... |
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[
Taken from [Google Code Jam 2013 Qualification Round Problem B](https://code.google.com/codejam/contest/2270488/dashboard#s=p1):
>
> Alice and Bob have a lawn in front of their house, shaped like an N metre by M metre rectangle. Each year, they try to cut the lawn in some interesting pattern. They u... |
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Produce a program to correctly number a crossword grid.
## Input
The input will be the name of a file representing the crossword
grid. The input filename may be passed as an argument, on the
standard input, or by other conventional means other than
hardcoding.
**Grid file format:** A text file. The f... |
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Python Q&A Count
Counts the number of questions and answers related to Python in the dataset, providing insight into the prevalence of Python content.