ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
45 lines
958 B
Markdown
45 lines
958 B
Markdown
---
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id: 5900f4641000cf542c50ff76
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title: 问题247：双曲线下的正方形
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challengeType: 5
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videoUrl: ''
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dashedName: problem-247-squares-under-a-hyperbola
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---
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# --description--
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考虑受1≤x且0≤y≤1/ x约束的区域。
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设S1是可以适应曲线的最大正方形。设S2是适合其余区域的最大正方形，依此类推。设Sn的指数是表示Sn左边的方格数和Sn以下的方格数的对（左下）。
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该图显示了一些用数字标记的方格。 S2左边有一个正方形，下面没有正方形，所以S2的索引是（1,0）。可以看出，S32的索引是（1,1），也是S50的索引。 50是Sn的指数为（1,1）的最大n。
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Sn指数为（3,3）的最大n是多少？
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# --hints--
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`euler247()`应该返回782252。
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```js
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assert.strictEqual(euler247(), 782252);
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```
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# --seed--
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## --seed-contents--
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```js
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function euler247() {
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return true;
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}
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euler247();
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```
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# --solutions--
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```js
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// solution required
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```
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