For [3,9,20,null,null,15,7], what is the output?

Question

For [3,9,20,null,null,15,7], what is the output?

Option A — Correct answer

[[3],[9,20],[15,7]]

Option B

[3,9,20,15,7]

Option C

[[15,7],[9,20],[3]]

Option D

[]

Explanation

The output is [[3],[9,20],[15,7]].

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