DRW Interview Question: how many ways to permute coin... | Glassdoor

Interview Question

Software Engineering Interview(Student Candidate) North Chicago, IL

how many ways to permute coins, and then what if you can

  rotate the positions of the coins,

Interview Answer

1 Answer


Someone else had this same problem. It's just combinatorics. The second part is really group theory, but you can just figure it out. You might not be able to figure it out in the time they give you so you might as well practice before you guy. I assume the other people will also know how to do these before they go.

Interview Candidate on Feb 9, 2012

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