Six-year Olympiad-There are 100 books in the library, and you need to sign them when you borrow them. It is understood that in this 100 book, - Quotes Website

Six-year Olympiad-There are 100 books in the library, and you need to sign them when you borrow them. It is understood that in this 100 book,

Firstly, the formula refers to C language &; Yes, and | Yes or.

A | B | C = A+B+C-A & amp； b-A & amp； c-A & amp； b+ A & amp； B& amp； C

The sum of books read by three people = 33+44+55-29-25-36+ books read by three people.

= 42+ books you have read.

At least three people are required to have seen it, that is, at most 25.

So books that haven't been borrowed = 100-42-25 = 33.

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