1507. Reformat Date

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Given a date string in the form Day Month Year, where: - Day is in the set {"1st", "2nd", "3rd", "4th", ..., "30th", "31st"}. - Month is in the set {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}. - Year is in the range [1900, 2100]. Convert the date string to the format YYYY-MM-DD, where: - YYYY denotes the 4 digit year. - MM denotes the 2 digit month.

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solution.cppC++17

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