Got the interview through a referral. Applied on the company website then got email from recruiter.

Had an initial call with a hiring manager describing general job experience, going over resume, discussing what I'm looking for etc.

Had a follow up behavioral and technical interview with actual manager of team and some team members.

countingBits problem: Given a number, write C code that detects how many bits would be set in the binary representation of the number.

What are the issues with the below code: int calcSquare(volatile int* num){ return *num * *num; }