ELI5: Explain Like I'm 5

concurrent data structure

A concurrent data structure is like a collection of data that can be used by multiple people at the same time. It is like having multiple copies of a book so that many people can read it at the same time. It's like a library where everyone can borrow a book and then return it when they are done. It prevents people from having to wait for someone else to finish before they can use the data structure.
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