Questions tagged [roman-numerals]
This tag indicates that the challenge involves Roman numerals
33 questions
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Multiply the input by 2
Your goal is to write a program which will take an input and multiply it by 2. However, there are some catches.
You will get an input in one of a few forms:
A number (...
- 2,407
8
votes
18
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Output five hundred different valid Roman numerals [closed]
Output any 500 different valid Roman numerals in the range 1 to 3999, in uppercase. Code golf.
- 8,130
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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 ...
- 4,822
11
votes
3
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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 ...
- 997
-3
votes
7
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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:
...
- 2,000
14
votes
4
answers
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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 ...
- 11.5k
19
votes
9
answers
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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 (...
- 46.8k
19
votes
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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), ...
- 19.6k
12
votes
4
answers
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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
516
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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
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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. ...
- 1,506
16
votes
6
answers
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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 ...
- 3,881
19
votes
15
answers
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Match Roman Numerals
Challenge
Given some input string, return a truthy value if it represents a correct roman numeral between 1 (=I) and 3999 (=...
- 44.1k
20
votes
4
answers
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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 ...
- 2,645
30
votes
29
answers
5k
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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 ...
- 31.9k