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>
43 lines
972 B
Markdown
43 lines
972 B
Markdown
---
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id: 5900f46e1000cf542c50ff80
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title: 问题257：角度平分器
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challengeType: 5
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videoUrl: ''
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dashedName: problem-257-angular-bisectors
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---
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# --description--
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给定是一个整数边三角形ABC，边a≤b≤c。 （AB = c，BC = a且AC = b）。三角形的角平分线在点E，F和G处与两侧相交（见下图）。
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段EF，EG和FG将三角形ABC划分为四个较小的三角形：AEG，BFE，CGF和EFG。可以证明，对于这四个三角形中的每一个，比率区域（ABC）/面积（子三角形）是合理的。然而，存在这些比率中的一些或全部是积分的三角形。
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存在多少个周长≤100,000,000的三角形ABC，以便比率面积（ABC）/面积（AEG）是整数？
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# --hints--
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`euler257()`应该返回139012411。
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```js
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assert.strictEqual(euler257(), 139012411);
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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 euler257() {
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return true;
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}
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euler257();
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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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