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>
47 lines
1005 B
Markdown
47 lines
1005 B
Markdown
---
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id: 5900f4381000cf542c50ff4a
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title: 问题203：无平方二项系数
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challengeType: 5
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videoUrl: ''
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dashedName: problem-203-squarefree-binomial-coefficients
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---
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# --description--
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二项式系数nCk可以以三角形排列，Pascal的三角形，如下所示：
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111121133114641151010511615201561172135352171 .........
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可以看出Pascal三角形的前八行包含十二个不同的数字：1,2,3,4,5,6,7,10,15,20,21和35。
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如果没有素数的平方除n，则正整数n称为squarefree。在Pascal三角形的前八行中的十二个不同数字中，除了4和20之外的所有数字都是无方形的。前八行中不同的无平方数字的总和为105。
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找到Pascal三角形的前51行中不同的无平方数字的总和。
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# --hints--
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`euler203()`应该返回34029210557338。
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```js
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assert.strictEqual(euler203(), 34029210557338);
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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 euler203() {
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return true;
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}
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euler203();
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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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