SOLVE THIS PROBLEM USING ARRAYS and STRINGS... IN C++

The format of a date needs to be changed in the following manner: 1st Mar 1984 => 1984-03-01

Write a function 'ReformatDate' which will take the input String and returns the new format of the string.

String ReformatDate(String oldDate);

Example:

1st Mar 1984 => 1984 - 03 - 01

2nd Feb 2013 => 2013 - 02 - 02

15th Apr 1840 => 1840 - 04 - 15

The 'Day' may equal any one of the following values:

1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, 9th,.......29th, 30th, 31st

The 'Month' may equal any one of the following values:

Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec

The Year will always be represented by 4 digits and may equal anything between 1900 and 2100, both inclusive.

Your Task is to format the given list of dates in to the following format: YYYY-MM-DD

Where:

YYYY represents the year in 4 digits

MM represents the year in 2 digits

DD represents the day in 2 digits