.net - Get the latest updated sub-directory -

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am trying find latest sub-directory parent director. 

public static directoryinfo getlatestsubdirectory(string parentdirpath)

as of implementation uses bubble sort algorithm find latest comparing creation time.

 if (subdirinfo.creationtimeutc > latestsubdirinfo.creationtimeutc)

am wondering if there's more efficient way this? linq??

return new directoryinfo(parentdirpath)            .getdirectories()            .orderbydescending(d => d.creationtimeutc)            .first()

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