GNU APL and ngn/apl use UTF-8, so use a byte counting tool.
NARS2000 only uses UCS-2, so 2 bytes per character.
IBM's APL2 is the only modern APL that natively supports APL EBCDIC, so 1 byte per character.
Dyalog APL uses any Unicode format, or the classic Dyalog character set (Table 1 below).*
...
Disclaimer: This bounty was posted by a person whose job is to promote APL.
50 – 500 rep for an APL answer
I will reward 50 rep if all of the following conditions are met:
The answer is in Dyalog APL Classic/Unicode/Extended/Prime, APL2, APL+, APLSE, GNU/APL, Sharp APL, sAPL, SAX, NARS, APLX, A+...
Generate a different sudoku
code-golfsudokugridopen-ended-function
Task
Given a valid sudoku board, generate another sudoku board that isn't equivalent to the one inputted.
What do we consider as equivalent sudoku boards?
they are the same,
the digits are swapped (eg. 2<->7 or 2->5->8->2),
one ...
This is a very simple challenge. Your code should output the following numbers in order.
1 1
2 1
3 2
4 3
5 7
6 14
7 30
8 62
9 129
10 263
11 534
12 1076
13 2160
14 4318
15 8612
16 17145
17 34097
18 67764
19 134638
20 267506
21 531606
22 1056812
23 2101854
24 4182462
25 8327263
26 16588973
27 3306...
Parity bits
Given a binary message, and the number of parity bits, generate the associated parity bits.
A parity bit is a simple form of error detection. It's generated by counting the number of 1's in the message, if it's even attach a 0 to the end, if it's odd attach 1.
That way, if there's a 1...
A composition of an integer \$n\$ is a representation of \$n\$ as a sum of positive integers. For example the eight compositions of 4 are as follows:
4, 3 + 1, 1 + 3, 2 + 2, 2 + 1 + 1, 1 + 2 + 1, 1 + 1 + 2, 1 + 1 + 1 + 1.
The challenge is to output the number of compositions of \$n\$ in which th...
(This is part 1 in a two-part challenge.)
Your task is to solve a Hexasweep puzzle.
A Hexasweep puzzle is set out on a grid of diamonds arranged in hexagonal shapes, of which the board looks like a hexagon, like so:
_____
/\ \
_____/ X\____\_____
/\ \ / XX /\ \
/X...
Absurd thematic challenges
These can only be claimed once each, first come first serve. I will answer any clarifying questions for any challenge given below if needed.
500 rep for answering Transform characters of your choice into "Hello, world!"... As a self-validating challenge.
This challenge ...
