Strawberry Fields Strawberry Fields
Simple+
English

Let me take you down, 'cause i'm going to . . .

StrawberryFields

Let's grow strawberries!

But . . . all kids in the neighborhood are fond of strawberries, so we need to protect our precious plants by placing a fence.

The fence is made of 4 parts (a, b, c, d) and each of them has (but not necessarily) a different length. They are going to be placed around the field in a counterclockwise order.

It's up to you to write a function that returns (in degrees) the angle of the inside corner α which forms between the first and last part of the fence (a and d) so that the fence encloses the maximum area for our strawberry bed.

You are given four numbers (a, b, c, d) that represent the lengths of the four fence parts. Your function has to return the angle measured from the inside and formed in order to enclose the maximum area. The angle we are searching for should be rounded to one tenth of a degree (fig.1).

figure1

Input: Four numbers.

Output : A number rounded to one decimal point.

Example:

strawberryfield(100, 100, 100, 100) == 90    #  square         (exmp.1)
strawberryfield(150, 100, 150, 100) == 90    #  rectangle      (exmp.2)
strawberryfield(150, 100, 50, 100) == 60     #  trapezium      (exmp.3)
strawberryfield(203, 123, 82, 117) == 60.8   #  quadrilateral  (exmp.4)

exmp

What it can be used for: Surveying or just to show off your math skills.

Precondition:

∀ length of all sides : length of one side <= sum length of three other sides

∀ angle α of all corners : 0° <= α <= 180°

Settings
Code:
CheckiO Extensions

CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

pip3 install checkio_client

Configure your tool

checkio --domain=py config --key=

Sync solutions into your local folder

checkio sync

(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)

checkio serv -d

Alternatevly, you can install Chrome extension or FF addon

checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

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