This was a hiring event onsite, but conducted virtaully via codility due to COVID-19.
4 rounds, the below questions were asked:
844. Backspace String Compare
- follow up: how to handle left/right arrow keys?
1236. Web Crawler (premium)
- changed the problem to find out only those URLs which are dead (HttpStatusCode: 40X, 50X, etc) and in same domain.
75. Sort Colors
- after 2 pass, need to implement in 1 pass
227. Basic Calculator II
- operators to support: + - * / ^
Even though I answered all of them properly with followup answers, I was rejected :(
This happened to me several times, not sure exactly where I can improve!