Any one can do coding on any skills. Professionally most of the tech companies uses this for the Interview purpose. It is basically to review the candidate coding skills based on any programming language like Java, C, C++, Python and the best part is it actually rectifyies the error and help candidate to demonstrate the knowledge. It is usely as wide range in today's tech recruitment market to asses good and potential candidates. Review collected by and hosted on G2.com.
Basically, there isno such disadvantage of hackerrank. It's just that they need to add one feature where hackerrank could easily stop the candidate to attempt the test from the similar email address if that email address has been previosuly captured. This will avoid the cheating and save interviewer time too. Review collected by and hosted on G2.com.
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