Secure Financial Transactions
Problem You work for a financial services company that handles transactions involving 32-bit signed integer amounts. Your goal is to enhance security by implementing an additional check: reverse the digits of a given transaction amount to create a new reference code. If reversing the digits results in a value outside the valid range of transaction amounts, which lies between -2,147,483,648 and 2,147,483,647, then return a code indicating the operation is invalid. Otherwise, return the reversed amount as the reference code. Assume the environment does not allow you to store 64-bit integers (signed or unsigned). ...