Questions tagged [roman-numerals]
This tag indicates that the challenge involves Roman numerals
31
questions
7
votes
3
answers
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Relaxing Romans
The Roman numeral for 499 is usually given as CDXCIX which breaks down as CD + XC + IX = 400 + 90 + 9 where numerals like ...
- 1,875
11
votes
3
answers
616
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Write the date in abbreviated Latin
Inspired by How do you write dates in Latin?
Challenge
Given a month-and-day date, output that date in abbreviated Latin, as explained below.
Input
Input is flexible, following conventions from other ...
- 907
-3
votes
7
answers
1k
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Straight pen strokes for Prime Numbers
Challenge
You are supposed to output the series I recently designed which goes as follows which are pen stroke counts of ascending prime numbers:
...
- 1,782
13
votes
4
answers
484
views
Not-Roman-Numeral Addition
Write the shortest program or function that mimics the addition in this XKCD strip:
Input
Two positive decimal integers containing only the digits 150.
Output
The ...
- 10.2k
18
votes
9
answers
2k
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ro1000an nu1000era50 en100o501ng
In the hovertext of this xkcd:
There's an "encoding" based on replacing runs of roman numerals with their sums. To do this:
Find all runs of at least 1 roman numeral (...
- 39.2k
19
votes
19
answers
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How long is it in Roman
Or Fix American Kennel Club's database
As covered by the recent video by Matt Parker, the American Kennel Club permits thirty-seven (37) dogs of each breed to be assigned the same name (source), ...
- 17.2k
12
votes
4
answers
319
views
Find an autogram using roman numerals
This task builds on: Find all reflexicons using roman numerals
An autogram is a sentence that lists the count of its own letters. Below is one of the first documented autograms found by Lee Sallows in ...
- 707
13
votes
6
answers
415
views
Find all reflexicons using roman numerals
A reflexicon is a self-descriptive word list that describes its own letter counts. Take for example the one found by Ed Miller in 1985 in English:
Sixteen e’s, six f’s, one g, three h’s, nine i’s, ...
- 707
22
votes
12
answers
2k
views
Roman Numeral-like Code Generator
Background
Roman numeral is a simple number system with the following properties:
Each symbol in the system maps to a specific value. (e.g. ...
- 1,478
16
votes
6
answers
918
views
Roman Numeral Counting
Roman numerals can be (mostly) written in a one column format, because each letter intersects the top and the bottom of the line. For example: I, or 1 intersects ...
- 3,831
19
votes
15
answers
4k
views
Match Roman Numerals
Challenge
Given some input string, return a truthy value if it represents a correct roman numeral between 1 (=I) and 3999 (=...
- 43.9k
20
votes
4
answers
2k
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When in Rome, Count as Romans do?
Background
This challenge is inspired by this website, which published the following diagram:
This diagram shows us that the longest Roman Numeral expression under 250 is that of 188, which requires ...
- 2,501
30
votes
29
answers
4k
views
Those Greedy Romans!
Given a strictly positive integer, return the shortest possible Roman numeral using only the additive rule. Output must consist of zero or more of each of the characters ...
- 30.6k
22
votes
7
answers
1k
views
Look-and-say sequence: roman numerals edition
Challenge description
We've had a few challenges involving the Look-and-say sequence. Quick reminder:
The sequence starts with 1,
Subsequent terms of this ...
- 5,652
18
votes
10
answers
2k
views
Integer goes back and forth through time
Input:
An integer.
Output:
First convert the integer to it's equivalent Roman Numeral.
Then convert each capital letter of that Roman Numeral to their ASCII/UNICODE decimal value.
And output the ...
- 128k