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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
This solution works only for this particular test. For example we could take this array "new[] { 1, 2, 2, 3, 3, 3 }", where correct answer is 3, but this code returns 2
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it is not necessary to use
.ToList()method, becauseString.Join()can work withIEnumerable<T>(which is result type ofSelect()method)This comment is hidden because it contains spoiler information about the solution