In which we refine and refactor past the point of recognition:

(  [\+] ( @a X- target )  )».abs.sum

In Raku, Perl, and Rust.

In which we achieve Single Pass and Single Expression, respectively.

Next door to the Haunted Mansion.

In which we pine for The Good Place, while visiting The Bad Place.

In which we reach the first plateau of clever, then (unfortunately) stop climbing.

(Still editing)

In which we search for a needle in a lendee
(or maybe a chatchka in a haystack),
and delight in some lazy CPAN comfort.

In which we see Leonardo outside his native Nums, and that the World is not made of Ones.

(Placeholder; still editing)

TWC Task #1 - Fibonacci Words

Raku

Perl

Dart

TWC Task #2 - Square-free Integer

Raku

Perl

Dart

(Currently editing)

In which we see that you don't need all the Fibs, and have trouble turning 21.

TWC Task #1 - Fibonacci Digit Sum

Given an input $N, generate the first $N numbers for which the sum of their digits is a Fibonacci number.

(i.e. Generate OEIS A028840)

Observations:

Raku

Perl

C

TWC Task #2 - Largest Square

(i.e. Generate OEIS A287298)

Given a number base, derive the largest perfect square with no repeated digits and return it as a string. (For base>10, use ‘A’..‘Z’.)

Observations:

Raku

Perl

C

In which we see that you can spell "numbers" without an e, and realize that first implies an ordering.

In which we bravely overcome ambiguity, and dodge two approaches in the face of (O³).

In which Raku solutions give shape to Perl solutions, and vice versa, and then Raku does what Raku does best.

Task 1: Swap Nibbles - basic and extended solutions in Raku and Perl.

Task 2: Sequence of symbols 123 without adjacent 1’s. Solutions in Raku and Perl, then a radically different approach that I would have never discovered in anything but Raku.