In case there's someone else interested in covering the edge cases, here's my list

# Some edge cases,
# which are either ignored by the description
# or explicitly promised to be never tested.
#
# Test cases are separated by two blank lines.
# Each test case should raise an error, for various reasons.
# A few of these cases have already been discussed in the "discuss" section.
#
# Each test should be run separately.
# Using Python and pytest, that would be:
#
#     from solution import kcuf
#     import pytest
#
#     test_cases = open('pedantic_tests.txt').read().split('\n\n')
#     for program in test_cases:
#         with pytest.raises(Exception):
#             _ = kcuf(program)

#                           INVALID CHAR LITERALS

# Empty char literal
var x
set x ''


# Bare " is not a valid CharElement
var x
set x '"'


# Multi char literal
var x
set x '123'


# Invalid escape sequence
var x
set x '\k'


# Bare newline is not a valid CharElement
var x
set x '
'


#                          INVALID STRING LITERALS

# Bare ' is not a valid CharElement
msg "'"


# Bare ' is not a valid CharElement
msg "'c'"


# Invalid escape sequence
msg "\k"


# Bare newline is not a valid CharElement
msg "

"


#            TOO FEW ARGUMENTS FOR VARIABLE-LENGTH INSTRUCTIONS

var  # with no declarations


proc  # with no name


call  # with no proc name


msg  # with no arguments


#                                    MISC

proc unusedProcedure
end


set usedBeforeDefined 1
var usedBeforeDefined


call setTo1 usedBeforeDefined
var usedBeforeDefined
proc setTo1 param
    set param 1
end

Should be fixed now

Link in description have content removed.

But I found it here:

https://www.reddit.com/r/ProgrammerHumor/comments/ba55q2/i_present_you_the_miracle_sort

Touché.

Definitely Best Practices ;P

Damn, we are talking about nodejs, i was creating my solution on google chrome console XD

There's always a 'but' somewhere. :)

okay. but.

doesn't work if there are 0s in the vector.

I'm so confused.

fantasticrypticode

python is amazing

#11b36/3qc:0z:vV

You cannot "import typing" in Python 3.10 when testing.

Error below:
Traceback (most recent call last):
File "/workspace/default/tests.py", line 2, in
File "/workspace/default/solution.py", line 2, in
File "/workspace/default/preloaded.py", line 11, in
File "", line 1027, in _find_and_load
File "", line 1002, in _find_and_load_unlocked
File "", line 945, in _find_spec
File "/workspace/default/.venv/lib/python3.10/site-packages/_distutils_hack/init.py", line 88, in find_spec
TypeError: str.format() argument after ** must be a mapping, not int

If procs are C-style macros, that would also mean that this is valid:

proc changeA
    set a 1      # No error here
end
var a
call changeA     # Because it's actually "expanded" here
msg a

I'd love to know the answer as well.

If you didn't intend this to be valid

var x
# Same as set x '\n'
set x '
'

# Same as msg "A\nmultiline\nstring"
msg "A
multiline
string"

then you should change

CharElement -> <any characters other than ', ", or \>
    | '\\' | "\'" | '\"'
    | '\n' | '\r' | '\t'

to

CharElement -> <any characters other than ', ", \, or EOL>
    | '\\' | "\'" | '\"'
    | '\n' | '\r' | '\t'

Variables [...] cannot be used before defined.

At least in Python, this is never tested. Same issue as below. Please either remove the requirement or put it in the Error Handling section and add a test case.