Big O notation and tech interviews

During technical interviews for software developer positions, it is common for companies to do a coding test using some services online such as LeetCode, Hackerrank, and other similar services.

Choosing the correct data structure or algorithm to solve a problem can tell the company some information about how you solve problems that might pop up for you to resolve.

Interviewers might ask you to analyze code and predict how its runtime or memory usage might change under different input sizes. Once you write code to resolve a problem, interviewers might also ask you to pinpoint potential performance problems in your code and if you can identify areas of optimization. Also, different algorithms and data structures have different time complexities, and knowing Big O allows you to make informed decisions about which solution is best suited for a particular problem, considering all the tradeoffs.

During interviews, you can also showcase your velocity in resolving...