2018-09-30 22:01:58 +00:00
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---
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id: 5900f43a1000cf542c50ff4d
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challengeType: 5
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title: 'Problem 206: Concealed Square'
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2019-08-05 16:17:33 +00:00
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forumTopicId: 301847
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2018-09-30 22:01:58 +00:00
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---
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## Description
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<section id='description'>
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Find the unique positive integer whose square has the form 1_2_3_4_5_6_7_8_9_0, where each “_” is a single digit.
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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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2018-10-04 13:37:37 +00:00
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tests:
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- text: <code>euler206()</code> should return 1389019170.
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2019-07-27 02:26:37 +00:00
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testString: assert.strictEqual(euler206(), 1389019170);
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2018-09-30 22:01:58 +00:00
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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 euler206() {
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// Good luck!
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return true;
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}
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euler206();
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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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2019-07-18 15:24:12 +00:00
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2018-09-30 22:01:58 +00:00
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</section>
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