Questions tagged [code-golf]
Code-golf is a competition to solve a particular problem in the fewest bytes of source code.
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Shortest way to cause a seg fault at 0x9c?
In honour of CrowdStrike's exception at 0x9c, what's the shortest way (character-wise) to cause a segfault by dereferencing address 0x9c?
The best I can come up with is:
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Compute Dickman
Input
A floating point number \$x\$ between 1 and 8 inclusive.
Output
The Dickman function of \$x\$.
The Dickman–de Bruijn function \$\rho(u)\$ is a continuous function that satisfies the delay ...
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Check if two lists are permutations of each other [duplicate]
Challenge
Given two lists of equal length, find if one of them is a permutation of the other. Output truthy or falsy values, or 1 or 0.
Test case Examples
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Reorder for smallest largest prefix sum
Given a multiset of integers, order them such that the largest absolute prefix sum $$\max_i \left| \sum_{k<i} a_k \right|$$ is smallest. Output any solution if multiple exist.
You can assume input ...
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Wait, ASCII was 128 characters all along?
Challenge
In this challenge, you have to take a nonnegative integer as input, convert it into base-128 bytes (0 → 0x00, 127 → ...
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Sorting with a deque
You're given an array of positive integers. Your job is to sort them using an initially empty deque (double-ended queue) by the following procedure:
Take a number from the front of the array, and ...
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Calculate sum of self-exponentation
Given an array of positive integers, calculate the sum of each number raised to its own power. For example, given 4,6,7, the code needs to return \$4^4+6^6+7^7=...
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Draw a Regular Reuleaux Polygon
Related: Draw A Reuleaux Triangle!, Draw a regular polygon
A Reuleaux polygon is a curve of constant width made up of circular arcs of constant radius. The most well-known Reuleaux polygon is the ...
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o y u (or and or)
In Spanish, the word 'or' is represented as 'o', with the exception of cases where the following letter starts with 'o' or 'ho' (including accented forms like 'ó' or 'hó'). Numbers also follow this ...
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A Ring of Cubes
Given an integer greater than or equal to 2, output ASCII-art resembling an isometric-perspective cube ring with that side length.
Expected outputs given below for 2, 3. You can imagine the rest. You ...
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Keyboard Ping Pong
Keyboard Ping Pong
(This question was inspired by this post.)
Challenge
Given a string of letters, determine if the word "ping-pongs" across the keyboard. (Letters alternating between sides ...
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Is it an option for the ls utility specified in POSIX.1-2017?
The ls utility lists specified directory content. It is infamous for stupidly lots of options which is known for anti-pattern design of implementing software.(...
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Is this a Hadamard matrix?
Hadamard matrices is a square matrix whose entries are either +1 or −1 and whose rows are mutually orthogonal.
In other words, it means that each pair of rows has matching entries in exactly half of ...
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Rolling median of all K-length ranges
Given an array of integers of length N and an odd integer K, return N - K + 1 integers, where the ith integer represents the median of a K-length subarray starting from i.
You may write a full program ...
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Detect revokes in Jass
Jass is a trick-taking game for four players and the national card game of Switzerland. It is played with a 36-card deck, four suits each with ranks 6, 7, 8, 9, 10, J, Q, K, A. We will be using French ...
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