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# Dominoes | ||
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Make a chain of dominoes. | ||
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Compute a way to order a given set of dominoes in such a way that they form a | ||
correct domino chain (the dots on one half of a stone match the dots on the | ||
neighbouring half of an adjacent stone) and that dots on the halfs of the stones | ||
which don't have a neighbour (the first and last stone) match each other. | ||
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For example given the stones `21`, `23` and `13` you should compute something | ||
like `12 23 31` or `32 21 13` or `13 32 21` etc, where the first and last numbers are the same. | ||
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For stones 12, 41 and 23 the resulting chain is not valid: 41 12 23's first and last numbers are not the same. 4 != 3 | ||
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Some test cases may use duplicate stones in a chain solution, assume that multiple Domino sets are being used. | ||
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### Submitting Exercises | ||
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Note that, when trying to submit an exercise, make sure the solution is in the `exercism/python/<exerciseName>` directory. | ||
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For example, if you're submitting `bob.py` for the Bob exercise, the submit command would be something like `exercism submit <path_to_exercism_dir>/python/bob/bob.py`. | ||
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For more detailed information about running tests, code style and linting, | ||
please see the [help page](http://exercism.io/languages/python). | ||
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## Submitting Incomplete Solutions | ||
It's possible to submit an incomplete solution so you can see how others have completed the exercise. |