There was an initial telephonic interview with the hiring manager, which lasted for about 30 minutes. At the end of the telephonic conversation, the hiring manager expressed his interest in meeting me in person. A face-to-face interview was scheduled later that week.

The face-to-face interview lasted for about 5-6 hours and occurred over 4 rounds. It covered mostly the basics and information that had been mentioned in the CV. The C interview was tricky, but nothing too difficult. There was no group or panel interview.

Later that day, I had a chance to meet the HR person.

How would you reverse a 32-bit integer?

For example, if the input is 0x76543210, the output has to be 0x01234567.

Can a variable be both const and volatile?