Make the lowest number square that equals n!
A number square containing the values 1, 2, 3, 4 looks like this:
12
34
To work out what a number square is, you first make four numbers by reading across the rows and across the columns; for the example above you would get 12, 34, 13 and 24, then ...
Python 2, 126 bytes
def f(s):x=[''.join(" -|"[cmp(ord(a),ord(b))]for a in s)for b in s];y=[a+b[::-1]for a,b in zip(x,x)];print'\n'.join(y+y[::-1])
This is essentially a port of my Actually solution.
Try it online
Explanation:
x=[''.join(" -|"[cmp(ord(a),ord(b))]for a in s)for b in s] # ge...
Identicons are visual depictions of hash values, often made from symmetrical arrangements of geometric shapes. Your default Stack Exchange avatar is an identicon. This challenge is about creating "wordenticons", simple text-based versions of identicons that apply to strings of lowercase letters, ...
Write two programs/functions:
The shortest possible that returns a truthy value if given your Stack Exchange username.
An obfuscated one (as explained below) that does the same thing.
Rules for number 2:
May be no more than ten times the byte-count of number 1.
Must be written in the same l...
Question is still work-in-progress
If I searched correctly this isn't a duplicate, but let me know if it is, then I'll have an idea to modify / extend it.
Let's build a Staircase
Tags: code-golf ascii-art string
We don't have enough pretty easy challenges for beginners. More and more of the...
Golf me an ASCII Alphabet
tags: code-golfkolmogorov-complexityascii-art
Don't you find that reading simple text isn't appealing enough? Try our
##### ### ### ##### ##### ##### ##### # # ##### #
# # # # # # # # # # # # #
##### ### # #...
Do X without Y
This isn't always bad, but it's been a particular trap for beginners, so be careful.
In the past, there were popular questions about doing a simple task but with the obvious method banned:
Produce the number 2014 without any numbers in your source code
How to write a C program ...
Here is the challenge as proposed by @trichoplax thanks to him for consolidating my post and standarizing it to PPCG common-rules.
A galaxy is a group of numbers where each one is mapped to another via a precise function f either a symbolic one or mathematical, a structure of numbers sharing ...
Inspired by this question.
Challenge
Given a 2D matrix of integers, each row has a maximum value. One or more elements of each row will be equal to the maximum value of their respective row. Your goal is to determine which column(s) contain the most entries which are equal to their respective r...
Emotinomicon 18 bytes, 5 chars
😀⏪😀😨⏩
Explanation:
😀 - push 0 to the stack
⏪ - open loop
😀 - push 0 to the stack
😨 - pop top of the stack, and output it as a number
⏩ - end loop
As long as there's something on the stack, it's going to loop indefinitely
