Leetcode 721. Accounts Merge

Same as leetcode. Variation - 1. Account is an object instead of just email. So it can have multiple fields like name, email, Phone number. 2. Emails are case insensitive so need to take that into account. abc@xyz.com and AbC@xyz.com are same and need to be merged. 2. follow up - Accounts should be merged if phone numbers match as well. Example - Account 1 - name - Alice email - abc@xyz.com ph - 12345 Account 2 - Bob email - abc@xyz.com ph - 9999 Account 3 - Bob email - bob@xyz.com ph - 999 Account 3 - Cat name - abc email - a2@xyz.com ph - 12345 All three should be merged since Account 1 email = Account 2 email account 2 phone number = account 3 phone number

Merge accounts