4Sum - Leetcode 18 - Two Pointers (Python)

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[Thebeast_QwQ]

Isn't it kinda misleading to call it a 2 pointer approach when we essentially use n (here 4) pointers (lo and hi are basically pointers too right?)

[JoeTan-nqfq]

If it is a k sum problem, does it mean we need to resort to recursive solution (until we end up with 2 sum problem)?