What is the relevance of the big O in data structures anf algorithms..?

Question

So urgent

Answer 1

• Big-O Misconceptions
http://ssp.impulsetrain.com/big-o.html

In computer science and sometimes mathematics, big-O notation is used to talk about how quickly a function grows while disregarding multiplicative and additive constants. When classifying algorithms, big-O notation is useful because it lets us abstract away the differences between real computers as just multiplicative and additive constants.

• Know Thy Complexities!
http://bigocheatsheet.com/#

Answer 2

https://rob-bell.net/2009/06/a-beginners-guide-to-big-o-notation/