# The problem is unclear and tests seem contradictive

• Two test cases:

[1,2,3,4,4,5] yields false
[1,2,3] yields true

If the original array without split can be a sub-sequence, then [1,2,3,4,4,5] can be a sub-sequence where 3 consecutive integers are present. So the result should be True.

If it's not, then how can [1,2,3] be True?

• I am also confuse about the description of the problem. I thought the subsequence is constructed by a series of integers including at least 3 consecutive integers while others can be non-consecutive integers. But from the result and solution, it seems like the subsequence should only be consecutive integers.

• Same problem.

• [1,2,3,4,5,6,6,8,9,9]
Expected: false

Maybe I have missed something in the description, I think this is correct since we can split it as [1,2,3] and [4,5,6,6,8,9,9].
https://discuss.leetcode.com/topic/100044/need-clarification-for-the-requirement

• @dingling1 You have a good point. The problem description is unclear (or considering your examples: wrong). It says: "each subsequences consist of at least 3 consecutive integers." However, considering the test cases, it should have said: "each subsequence should satisfy both of these conditions: Firstly, all elements in the subsequence should be consecutive integers with no duplicates. Secondly, each subsequence should contain at least 3 elements." [1,2,3,4,4,5] yields false, because it doesn't satisfy the first condition. However, [1,2,3] satisfies both conditions and consequently yields true.

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