Deduplicate - Find missing element

[hobovsky]

From #39

1. Return the Missing Element

• 7kyu
• input: array of numbers from 0-9 with one missing
• Satisfaction: 94% with 9k completions
• No pending issues
• 10 languages + 2 pending translations, 4 unique
• Published Nov 2013, author inactive

2. Find the Missing Number

• 7kyu
• input: array of numbers from 0-100(inclusive) with one missing)
• Satisfaction: 93% with 5k solutions
• 1 pending issue
• 10 languages + 3 pending translations, 5 unique
• Published Oct 2016, author inactive

[hobovsky]

I have no good candidate here. Kata 1. is older and has more completions, but looks close to trivial. But still, range of 2. does not really make any difference. Maintenance-wise they seem to be similar.

Any ideas?

[Blind4Basics]

keep 2, retire 1. The amount of work seems slightly lower with 2 (one less translation/one less unique)

[JohanWiltink]

They're functionally identical. (2) is as trivial as (1).

Keep 1, retire 2. The newer one should not have been approved, as a duplicate, and no need to retire more solutions.

[Blind4Basics]

solutions are not retired in any way. That's a non argument ;)

[4500zenja1]

Since these katas are almost identical to each other with the same approach, I suggest to keep the oldest one (namely, 1) and retire 2 with transferring all existing unique languages prior that (these are, Clojure, COBOL, C++, Elixir).

[ejini6969]

This one can be concluded too