Difficulty level: Medium
Given a list of time stamps in 12 hr format, the task is to sort them in increasing order.
One of the ways to solve it is to convert the time from 12 hr format to 24 hr format and then sort
the list. One important thing to be taken into consideration that the next minute after 11 : 59 PM is 12 : 00 AM.
Problem setter’s solution: SOLUTION