29 lines
1.2 KiB
Markdown
29 lines
1.2 KiB
Markdown
# Sum Of Multiples
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Given a number, find the sum of all the multiples of particular numbers up to
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but not including that number.
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If we list all the natural numbers up to but not including 20 that are
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multiples of either 3 or 5, we get 3, 5, 6 and 9, 10, 12, 15, and 18.
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The sum of these multiples is 78.
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Given a number, find the sum of the multiples of a given set of numbers,
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up to but not including that number.
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## Hints
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This exercise requires you to process a collection of data. You can simplify your code by using LINQ (Language Integrated Query).
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For more information, see [this page](https://docs.microsoft.com/en-us/dotnet/articles/standard/using-linq).
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### Submitting Exercises
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Note that, when trying to submit an exercise, make sure the exercise file that you're submitting is in the `exercism/csharp/<exerciseName>` directory.
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For example, if you're submitting `bob.cs` for the Bob exercise, the submit command would be something like `exercism submit <path_to_exercism_dir>/csharp/bob/bob.cs`.
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## Source
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A variation on Problem 1 at Project Euler [http://projecteuler.net/problem=1](http://projecteuler.net/problem=1)
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## Submitting Incomplete Solutions
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It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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