First, I did a phone screening, which wasn't that hard. There were some technical questions about how I did my projects and what I would do if I were to do that project again.

Then came the skill assessment test, which was harder. There were math and programming questions. The math wasn't that bad; however, the programming ones were tiring. Basically, I needed to code 4 programs in 4 hours, and completion time would also be considered.

I passed the skill assessment test and was invited for the final onsite interview. I had a nice lunch and talked to smart people there, and finally, I talked with the HR. I mentioned several stupid things during the last part of the onsite interview, like how I would leave Epic after 3 years if I got the job (don't do that!).

I didn't get the offer and moved on.

Given an integer, which is the length of a string containing numbers, give a complete permutation of strictly increasing numbers.