Computer Science / Unit 3 CS 0098 short lesson, about 20 seconds
The Set
Captions available
The idea
A set is an abstract data type representing an unordered collection of unique elements — less functionality than a list, and the reduction buys more efficient representations.
In practice
The places someone wants to visit form a set: no order, no duplicates, membership the only question.
Where people slip
Losing order is the price of the speed.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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