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110 lines
3.6 KiB
Markdown
110 lines
3.6 KiB
Markdown
# Kindergarten Garden
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Given a diagram, determine which plants each child in the kindergarten class is
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responsible for.
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The kindergarten class is learning about growing plants. The teacher
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thought it would be a good idea to give them actual seeds, plant them in
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actual dirt, and grow actual plants.
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They've chosen to grow grass, clover, radishes, and violets.
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To this end, the children have put little cups along the window sills, and
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planted one type of plant in each cup, choosing randomly from the available
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types of seeds.
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```text
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[window][window][window]
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........................ # each dot represents a cup
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........................
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```
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There are 12 children in the class:
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- Alice, Bob, Charlie, David,
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- Eve, Fred, Ginny, Harriet,
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- Ileana, Joseph, Kincaid, and Larry.
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Each child gets 4 cups, two on each row. Their teacher assigns cups to
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the children alphabetically by their names.
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The following diagram represents Alice's plants:
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```text
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[window][window][window]
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VR......................
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RG......................
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```
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In the first row, nearest the windows, she has a violet and a radish. In the
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second row she has a radish and some grass.
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Your program will be given the plants from left-to-right starting with
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the row nearest the windows. From this, it should be able to determine
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which plants belong to each student.
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For example, if it's told that the garden looks like so:
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```text
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[window][window][window]
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VRCGVVRVCGGCCGVRGCVCGCGV
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VRCCCGCRRGVCGCRVVCVGCGCV
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```
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Then if asked for Alice's plants, it should provide:
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- Violets, radishes, violets, radishes
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While asking for Bob's plants would yield:
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- Clover, grass, clover, clover
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## Exception messages
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Sometimes it is necessary to raise an exception. When you do this, you should include a meaningful error message to
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indicate what the source of the error is. This makes your code more readable and helps significantly with debugging. Not
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every exercise will require you to raise an exception, but for those that do, the tests will only pass if you include
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a message.
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To raise a message with an exception, just write it as an argument to the exception type. For example, instead of
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`raise Exception`, you should write:
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```python
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raise Exception("Meaningful message indicating the source of the error")
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```
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## Running the tests
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To run the tests, run the appropriate command below ([why they are different](https://github.com/pytest-dev/pytest/issues/1629#issue-161422224)):
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- Python 2.7: `py.test kindergarten_garden_test.py`
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- Python 3.4+: `pytest kindergarten_garden_test.py`
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Alternatively, you can tell Python to run the pytest module (allowing the same command to be used regardless of Python version):
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`python -m pytest kindergarten_garden_test.py`
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### Common `pytest` options
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- `-v` : enable verbose output
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- `-x` : stop running tests on first failure
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- `--ff` : run failures from previous test before running other test cases
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For other options, see `python -m pytest -h`
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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_WORKSPACE/python/kindergarten-garden` directory.
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You can find your Exercism workspace by running `exercism debug` and looking for the line that starts with `Workspace`.
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For more detailed information about running tests, code style and linting,
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please see [Running the Tests](http://exercism.io/tracks/python/tests).
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## Source
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Random musings during airplane trip. [http://jumpstartlab.com](http://jumpstartlab.com)
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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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