u/After_Bandicoot_3701

got a call from HR that they are moving forward with my application, like after ghosting me for 3-4 months, interview is in 3 days, can anyone help me with juspay part B hackathon, like I know they ask about previous code, improvement in time complexity and then making that code thread safe, I want to know in deep about that part B like how to make it thread safe without using mutex and semaphores, and what they are expecting in this round the after this??