Questions tagged [hexadecimal]
This tag is for challenges related to hexadecimal, or base 16, a number system that often uses the digits 0 ‐ 9 and a ‐ f. Only use this tag on challenges specific to base 16, rather than generic [base-conversion] challenges
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RGB to hexadecimal
Based off a Scratch project
The pen extension in Scratch has a set pen color to () block. The () is normally a color dropdown, ...
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Hexadecimal -> Binary Art
Take a list of 2-digit hexadecimal numbers as input, and output the binary value, replacing each 1 with an 'X', and each 0 with a space.
For example
Input = ...
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Reverse hex cipher
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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Write a regex that would increment a 2-digit hexadecimal number
Your regex will receive a string of the form
!XX!
#<extra>
where X is any hexadecimal digit (0-9 and A-F capital letters ...
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Scientific notation in Base-16
Input a scientific notation number (base 10), output scientific notation in base 16 (as defined below).
Details
In scientific notation, all non-zero numbers are written in the form
$$ m \times 10^n $$
...
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Code Golf Measurer © 2019
Code Golf Measurer © 2019
Hexdumps used with xxd look something like this:
...
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Find the closest three-digit hex colour
In CSS, colours can be specified by a "hex triplet" - a three byte (six digit) hexadecimal number where each byte represents the red, green, or blue components of the colour. For instance, ...
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Convert alphanumeric (base-36) sentences into hexadecimal (base-16) sentences
I use "sentence" here loosely to mean "any sequence of words separated by spaces" and "words" to mean "sequences of alphanumeric (hexatrigesimal) characters unseparated by spaces".
Conversion is from ...
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Python code to produce C++14 hex integer literal with ticks
tl;dr? See bottom for The Competition
Integer literals
While programming, the 64-bit hexadecimal literal 0x123456789abcdefL is difficult to gauge the size of. I ...
- 117
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0xDEADBEEF is not tasty, but still 0xFEEDBEEF
Inspired by "You had me at hello"
Introduction
For those who don't know, hexadecimal is a base system like decimal. Contrary to decimal however, it uses 16 (hence the name) digits instead of ...
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Let's golf a BIBABOBU decoder
While I was traveling in the future, I noticed a funny game among kids circa 2275. When they don't want their great-great-great-great-grand parents to understand what they're saying, they use the ...
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Render a monospaced bitmap font from image [closed]
Input is in this format:
image fontwidth fontheight rowwidth xoffset yoffset xgap ygap non-existent charstart thetextitself
thetextitself: The text that should ...
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Swap the Endianness
As most of you probably know, (byte-addressable) hardware memories can be divided into two categories - little-endian and big-endian. In little-endian memories the bytes are numbered starting with 0 ...
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Binary to Hexadecimal
Convert a binary number (of any size) into a hexadecimal number.
Input
A POSITIVE binary number with just the 0s and 1s. A ...
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How to convert HEX2 to RGBA?
The world of art is full of colour, but the world of the network is even fuller than the world of art of diferent colours and it's renderings. That's why we need to know how to convert one type of ...
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