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APL(Dyalog Unicode), 3333 26 bytes SBCS

A port of Nick Kennedy's Jelly answer.

4(' -' '1ijk'⌷⍨¨⌊⍤÷⍨,|)8|⊢⊥⍨3*2|⊢'1ijk'⌷⍨¨2 4⊤⊢⊥⍨3*2|⊢

Try it on APLgolf!Try it on APLgolf!

A train submission which takes a list of codepoints as the right argument.

APL has mixed radix decode (⊥) which makes the calculation part quite short:

       2|⊢  ⍝ each value in the input modulo 2
     3*     ⍝ raise 3 to this power
  ⊢⊥⍨       ⍝ use the resulting numbers as a mixed radix to decode the input
8|          ⍝ modulo 8

Technically the 2| is not needed, but without it even the test cases with 2 characters start to fail because of very large numbers.

⌊⍤÷⍨,|2 4⊤ is divmod with swapped argumentscalculates 4|⊢ and 2|4÷⍨⊢, and both resulting integers are used to index into one string.

APL(Dyalog Unicode), 33 bytes SBCS

A port of Nick Kennedy's Jelly answer.

4(' -' '1ijk'⌷⍨¨⌊⍤÷⍨,|)8|⊢⊥⍨3*2|⊢

Try it on APLgolf!

A train submission which takes a list of codepoints as the right argument.

APL has mixed radix decode (⊥) which makes the calculation part quite short:

       2|⊢  ⍝ each value in the input modulo 2
     3*     ⍝ raise 3 to this power
  ⊢⊥⍨       ⍝ use the resulting numbers as a mixed radix to decode the input
8|          ⍝ modulo 8

Technically the 2| is not needed, but without it even the test cases with 2 characters start to fail because of very large numbers.

⌊⍤÷⍨,| is divmod with swapped arguments, and both resulting integers are used to index into one string.

APL(Dyalog Unicode), 33 26 bytes SBCS

A port of Nick Kennedy's Jelly answer.

' -' '1ijk'⌷⍨¨2 4⊤⊢⊥⍨3*2|⊢

Try it on APLgolf!

A train submission which takes a list of codepoints as the right argument.

APL has mixed radix decode (⊥) which makes the calculation part quite short:

       2|⊢  ⍝ each value in the input modulo 2
     3*     ⍝ raise 3 to this power
  ⊢⊥⍨       ⍝ use the resulting numbers as a mixed radix to decode the input

Technically the 2| is not needed, but without it even the test cases with 2 characters start to fail because of very large numbers.

2 4⊤ calculates 4|⊢ and 2|4÷⍨⊢, and both resulting integers are used to index into one string.

Source Link
ovs
ovs
  • 60.6k
  • 3
  • 47
  • 161

APL(Dyalog Unicode), 33 bytes SBCS

A port of Nick Kennedy's Jelly answer.

4(' -' '1ijk'⌷⍨¨⌊⍤÷⍨,|)8|⊢⊥⍨3*2|⊢

Try it on APLgolf!

A train submission which takes a list of codepoints as the right argument.

APL has mixed radix decode (⊥) which makes the calculation part quite short:

       2|⊢  ⍝ each value in the input modulo 2
     3*     ⍝ raise 3 to this power
  ⊢⊥⍨       ⍝ use the resulting numbers as a mixed radix to decode the input
8|          ⍝ modulo 8

Technically the 2| is not needed, but without it even the test cases with 2 characters start to fail because of very large numbers.

⌊⍤÷⍨,| is divmod with swapped arguments, and both resulting integers are used to index into one string.