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* spelling: accidentally * spelling: announce * spelling: assembly * spelling: avoid * spelling: backend * spelling: because * spelling: claimed * spelling: candidate * spelling: certification * spelling: certified * spelling: challenge * spelling: circular * spelling: it isn't * spelling: coins * spelling: combination * spelling: compliant * spelling: containers * spelling: concise * spelling: deprecated * spelling: development * spelling: donor * spelling: error * spelling: everything * spelling: exceed * spelling: exist * spelling: falsy * spelling: faulty * spelling: forward * spelling: handle * spelling: indicates * spelling: initial * spelling: integers * spelling: issealed * spelling: javascript * spelling: length * spelling: maximum * spelling: minimum * spelling: mutable * spelling: notifier * spelling: coordinate * spelling: passport * spelling: perform * spelling: permuter * spelling: placeholder * spelling: progressively * spelling: semantic * spelling: submission * spelling: submit * spelling: translations * spelling: turquoise * spelling: visualization * spelling: without * spelling: registration * spelling: representation
64 lines
1.3 KiB
Markdown
64 lines
1.3 KiB
Markdown
---
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id: 5900f3d21000cf542c50fee5
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challengeType: 5
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title: 'Problem 102: Triangle containment'
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forumTopicId: 301726
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---
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## Description
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<section id='description'>
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Three distinct points are plotted at random on a Cartesian plane, for which -1000 ≤ x, y ≤ 1000, such that a triangle is formed.
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Consider the following two triangles:
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A(-340,495), B(-153,-910), C(835,-947)
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X(-175,41), Y(-421,-714), Z(574,-645)
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It can be verified that triangle ABC contains the origin, whereas triangle XYZ does not.
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Using triangles.txt (right click and 'Save Link/Target As...'), a 27K text file containing the coordinates of one thousand "random" triangles, find the number of triangles for which the interior contains the origin.
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NOTE: The first two examples in the file represent the triangles in the example given above.
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</section>
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## Instructions
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<section id='instructions'>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>euler102()</code> should return 228.
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testString: assert.strictEqual(euler102(), 228);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function euler102() {
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// Good luck!
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return true;
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}
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euler102();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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