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What set operations does Python support?

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01

Understand the problem

Explain set operations.

set
02

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03

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Sets support union (|), intersection (&), difference (-), and symmetric difference (^), plus subset/superset checks. They give O(1) average membership tests, making them ideal for dedup and fast lookups.

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04

Run the code

PYUnion/intersection/difference and O(1) membership
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Dossier 12 of 120 decoded in the Python track. One more won't hurt.

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