Math book?

Question

Discrete Math

Good day, a fairly large number of vacancies require good knowledge of linear algebra, probability theory, discrete mathematics and optimization theory
I would like to study a book in which all these topics are discussed, even if in a short form
Please tell me 3-5 books, most you like

Answer 1

I learned from Romanovsky according to Romanovsky.
https://www.ozon.ru/product/diskretnyy-analiz-uche...
I liked the tutorial

Answer 2

At one time in a technical school I studied discretization and theories according to the textbook Spirin, Spirin .. I had no experience with other textbooks, but the basics were there and everything was clear.