Solve in C#

There is a string representing a date in $"$MM$-$DD$"$ format, where MM denotes a

month in a two$-$digit format and DD denotes a day in a two$-$digit format. Some digits

were replaced by $"?".$ Replace all the question marks with digits $(0-9)$ in such a way

as to obtain the latest possible date.

Assume that the maximum number of

Write a function:

class Solution $\{$ public string solution$(string$ date$)$; $\}$

that, given a string quate, returns the latest valid date as a string in the format

$"$MM$-$DD$".$ If it is not possible to obtain any valid date, return the string $"-".$

Examples:

Assuming date $=?1-31",$ the date is clearly from January $(01)$ or November $(11).$

Only January has $31$ days, so the function should return $"01-31".$

Assuming date $=02-??",$ the date is clearly from February $(02),$ which has $28$

days. The function should return $"28-02".$

Assuming date $="??-4?",$ no month has at least $40$ days. The function should

return $"-{?}^{\text{'}\text{'}},$

Assuming date $={?}^{**}09-31,$ the date is not valid. There are only $30$ days in

September, so the function should return $"-".$days in each month is as follows: