Linked Questions
16 questions linked to/from Print every character your program doesn't have
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969
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"Hello, World!"
So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with hello-world, and counting). While this is not the most ...
326
votes
177
answers
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Tips for golfing in Python
What general tips do you have for golfing in Python? I'm looking for ideas which can be applied to code-golf problems and which are also at least somewhat specific to Python (e.g. "remove comments" is ...
69
votes
126
answers
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Print/Output the L-phabet
Inspired by George Gibson's Print a Tabula Recta.
You are to print/output this exact text:
...
50
votes
49
answers
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Tips for golfing in PowerShell
What general tips do you have for golfing in Windows PowerShell? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to PowerShell (e.g. "...
25
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58
answers
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Print the missing characters
Simple challenge inspired by the popularity of my previous print invisible text and print real invisible text challenges, and the same length different string challenge.
Given a string consisting of ...
44
votes
19
answers
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Create a square of increasing size by replicating the initial code
Your assignment is to write a program of even length, that prints an ASCII-art square (described below), that increases its side length by 1 unit each time the original source code is pasted in the ...
11
votes
87
answers
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Print the ASCII printable character set
Challenge: Print the entire printable ASCII charset (not just a range!) in order.
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31
answers
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Autogram programs
This sentence employs two a’s, two c’s, two d’s, twenty-eight e’s, five f’s, three g’s, eight h’s, eleven i’s, three l’s, two m’s, thirteen n’s, nine o’s, two p’s, five r’s, twenty-five s’s, twenty-...
22
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17
answers
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The infinite power tower
The challenge
Quite simple, given an input x, calculate it's infinite power tower!
x^x^x^x^x^x...
For you math-lovers out there,...
25
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6
answers
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Polyglot the (non constant) OEIS!
Disclaimer: This is heavily inspired by "Polyglot the OEIS!" but fixes the problem that lead to closure (see the output section) and was re-posted as to not invalidate answers.
Introduction
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20
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9
answers
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Partitioning the grid into triangles
Goal
The goal of this challenge is to produce a function of n which computes the number of ways to partition the n X 1 grid into ...
18
votes
17
answers
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PPCG Jeopardy: Robbers
How well do you know the site? Let's find out.
This is a cops-and-robbers challenge. Cop's thread.
As a robber, you need to:
Find a non-deleted, non-closed challenge that matches a cop's ...
12
votes
7
answers
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Shortest program whose concatenated program+output is a permutation of the 95 printable ASCII characters
Write a program that's as short as possible (as measured by byte-count), takes no input, contains no comments, and outputs a character string/sequence, such that concatenated program+output is exactly ...
11
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6
answers
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Invert a Quine!
We all know what a quine is. An inverted quine is a non-empty program that prints the inverse of its source code without reading its source code, and consists solely of printable-ASCII characters (...
7
votes
1
answer
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QWERTY Quine Creation
Challenge
Create a quine, that instead of outputting it's source, output's it's source QWERTY-sorted.
What is QWERTY sorting?
QWERTY sorting is sorting code by the QWERTY keyboard. Anything higher ...