Top new questions this week:
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This challenge is about implementing Shm-reduplication, originating in Yiddish, where one takes a word, duplicates it, and replaces the first syllable in the second word with "Shm" in order ...
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The sequence of Fibonacci numbers is defined as follows:
\$
F_0 = 0 \\
F_1 = 1 \\
F_n = F_{n-1} + F_{n-2}
\$
Given a Fibonacci number, return the previous Fibonacci number in the sequence. You do not ...
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Introduction
In chess, Knights can move two squares in one direction, and then one square in an orthogonal direction. On an x/y plane, these can be thought of as being a relative change of coordinates,...
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Given two positive integer fractions \$x\$ and \$y\$ such that \$x < y\$, give the fraction \$z\$ with the smallest positive integer denominator such that it is between \$x\$ and \$y\$.
For example ...
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We can arrange the positive integers like this:
1_| 2 | 5 | 10
4___3_| 6 | 11
9___8___7_| 12
16 15 14 13
That is, in L-shaped brackets expanding down and right ...
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Characters in strings are sometimes represented as their ASCII hexadecimal codes. Printable characters have two hex digits in their representation. Swapping those digits leads to another character, ...
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Inspired by the recent 3Blue1Brown video
Consider, for some positive integer \$n\$, the set \$\{1, 2, ..., n\}\$ and its subsets. For example, for \$n = 3\$, we have
$$\emptyset, \{1\}, \{2\}, \{3\}, \...
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Greatest hits from previous weeks:
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I was told that using the cmp function can be very useful in code-golf. But unfortunately, Python 3 doesn't have a cmp function.
...
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The sorting algorithm goes like this:
While the list is not sorted, snap half of all items (remove them from the list). Continue until the list is sorted or only one item remains (which is sorted by ...
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Polygons are named after the number of sides that they have. A pentagon has 5 sides, an octagon has 8 sides. But how are they named? What's the name for a 248-sided polygon?
All polygons are suffixed ...
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Following the best security practices, I keep a plain text file with my passwords on my hard drive. In fact, I just copied and pasted one of them to access my PPCG account.
In a lucid moment, I decide ...
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Every digital clock contains a small creature that has to advance the time every minute [citation needed]. Due to the popularty of digital clocks and the popularity of catching them in the wild, they ...
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Inspired by this blog post.
Write a program that outputs 99 distinct programs (in the same language) that output the string I love you.
How the programs are ...
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Isn't it annoying when you find a piece of code and you don't know what language it was written in? This challenge attempts to somewhat solve this.
Challenge
You will have to write a program that ...
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