A boolean array might work just as well, if the numbers are 0 and positive integers. You would have to keep a range of what numbers you have mapped as well. I think it will depend on the nature of the problem because I can see the array being a bad solution if the numbers are real sparse
is a comprehensive book on getting a job at a top tech company, while focuses on dev interviews and does this for PMs.
CareerCup's interview videos give you a real-life look at technical interviews. In these unscripted videos, watch how other candidates handle tough questions and how the interviewer thinks about their performance.
Most engineers make critical mistakes on their resumes -- we can fix your resume with our custom resume review service. And, we use fellow engineers as our resume reviewers, so you can be sure that we "get" what you're saying.
Our Mock Interviews will be conducted "in character" just like a real interview, and can focus on whatever topics you want. All our interviewers have worked for Microsoft, Google or Amazon, you know you'll get a true-to-life experience.
Use set. It contains unique elements
- DeepDive June 27, 2014