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Jonathan Allan
Jonathan Allan
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Jelly,  7  6 bytes

¬ß€»LṀ

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A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€»LṀ - Link, call this "f": list, A ¬ - logical NOT (vectorises) - convert all positive integers to zeros so that we wont implicitly treat them as ranges € - for each element, E, in A (...if the current A isn't now a zero): ß - call this Link (i.e. f(A=E)) L - length of A - Note that zero has length one. » - maximum (vectorises) Ṁ - maximum (of the resulting list)

Jelly,  7  6 bytes

¬ß€»LṀ

Try it online!

A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€»LṀ - Link, call this "f": list, A ¬ - logical NOT (vectorises) - convert all positive integers to zeros so that we wont implicitly treat them as ranges € - for each element, E in A (...if the current A isn't now a zero): ß - call this Link (i.e. f(A=E)) L - length of A - Note that zero has length one. » - maximum (vectorises) Ṁ - maximum (of the resulting list)

Jelly,  7  6 bytes

¬ß€»LṀ

Try it online!

A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€»LṀ - Link, call this "f": list, A ¬ - logical NOT (vectorises) - convert all positive integers to zeros so that we wont implicitly treat them as ranges € - for each element, E, in A (...if the current A isn't now a zero): ß - call this Link (i.e. f(A=E)) L - length of A - Note that zero has length one. » - maximum (vectorises) Ṁ - maximum (of the resulting list)
added 22 characters in body
Source Link
Jonathan Allan
Jonathan Allan
  • 115.5k
  • 8
  • 68
  • 293

Jelly, 7  7  6 bytes

¬ß€;LFṀ¬ß€»LṀ

Try it online!Try it online!

A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€;LFṀ¬ß€»LṀ - Link, call this "f": list, A ¬  - logical NOT (vectorises) - convert all positive integers to zeros so that   we wont implicitly treat them as ranges €  - for each element, E in A (...if the current A isn't now a zero): ß  - call this Link (i.e. f(A=E)) L  - length of A  - ;Note that zero has -length concatenateone.   » F - flatten maximum (vectorises)  Ṁ - maximum (of the resulting list)

Jelly, 7 bytes

¬ß€;LFṀ

Try it online!

A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€;LFṀ - Link, call this "f": list, A ¬  - logical NOT (vectorises) - convert all positive integers to zeros so that   we wont implicitly treat them as ranges €  - for each element, E: ß  - call this Link (i.e. f(A=E)) L  - length of A  ; - concatenate   F - flatten  Ṁ - maximum

Jelly,  7  6 bytes

¬ß€»LṀ

Try it online!

A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€»LṀ - Link, call this "f": list, A ¬ - logical NOT (vectorises) - convert all positive integers to zeros so that we wont implicitly treat them as ranges € - for each element, E in A (...if the current A isn't now a zero): ß - call this Link (i.e. f(A=E)) L - length of A - Note that zero has length one. » - maximum (vectorises)  Ṁ - maximum (of the resulting list)
Source Link
Jonathan Allan
Jonathan Allan
  • 115.5k
  • 8
  • 68
  • 293

Jelly, 7 bytes

¬ß€;LFṀ

Try it online!

A monadic Link accepting a list containing any strictly positive integers or nested, similar, lists that yields the maximal length list.

How?

¬ß€;LFṀ - Link, call this "f": list, A ¬ - logical NOT (vectorises) - convert all positive integers to zeros so that we wont implicitly treat them as ranges € - for each element, E: ß - call this Link (i.e. f(A=E)) L - length of A ; - concatenate F - flatten Ṁ - maximum