56 lines
978 B
Markdown
56 lines
978 B
Markdown
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---
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id: 5900f3e41000cf542c50fef7
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challengeType: 5
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title: 'Problem 120: Square remainders'
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videoUrl: ''
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localeTitle: 问题120:方形剩余部分
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---
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## Description
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<section id="description">设r是(a-1)n +(a + 1)n除以a2时的余数。例如,如果a = 7且n = 3,则r = 42:63 + 83 =728≡42mod 49.并且当n变化时,r也将变化,但是对于a = 7,结果是rmax = 42。对于3≤a≤1000,找到Σrmax。 </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>euler120()</code>应返回333082500。
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testString: 'assert.strictEqual(euler120(), 333082500, "<code>euler120()</code> should return 333082500.");'
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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 euler120() {
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// Good luck!
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return true;
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}
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euler120();
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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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