The interview process is a multi-stage process for hiring new employees. The interview process typically includes the following steps:

• Writing a job description
• Posting a job
• Scheduling interviews
• Conducting preliminary interviews
• Conducting in-person interviews
• Following up with candidates
• Making a hire.

Finding the maximum depth of a BST.

Count set bits in an integer.

Count the total number of ways to reach the Nth stair.

Circular rotation of an array by K positions.

Print all possible permutations of a given string.