Oracle Software Developer interview questions

1. Technical projects, why this design, how did you handle problem x, 2. Given a head of a linked list, detect if there is a cycle, if present print the start of cycle else print null

Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−231, 231 − 1]. For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows.