Do I Need Discrete Math for Algorithms?

Discrete mathematics is a vital prerequisite to learning algorithms, as it covers probabilities, trees, graphs, logic, mathematical thinking, and much more. It simply explains them, so once you get those basic topics, it is easier to dig into algorithms.

Do you need discrete math for data structures and algorithms?

Discrete Mathematics is pretty important for almost anything. Direct applications of Discrete Math in DS: The Foundations of Logic and Proofs - Without being able to write good proofs, we can never claim a data structure/algorithm to be correct.

What math is needed for algorithms?

A version of what is normally called discrete mathematics, combined with first-year (university) level calculus are the primary requirements to understanding many (basic) algorithms and their analysis.