* 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
963 B
Markdown
43 lines
963 B
Markdown
---
|
||
id: 5900f4331000cf542c50ff45
|
||
title: 问题198:模糊数字
|
||
challengeType: 5
|
||
videoUrl: ''
|
||
dashedName: problem-198-ambiguous-numbers
|
||
---
|
||
|
||
# --description--
|
||
|
||
对于分母界限d的实数x的最佳近似是有理数r / s(以简化形式),其中s≤d,因此任何比r更接近x的有理数p / q具有q> d。
|
||
|
||
通常,对于所有分母边界唯一确定对实数的最佳近似。但是,有一些例外,例如9/40对分母界限6具有两个最佳近似值1/4和1/5。如果至少有一个分母绑定为x拥有,我们将称为实数x不明确两个最佳近似值。显然,模糊的数字必然是理性的。
|
||
|
||
有多少个模糊数x = p / q,0 <x <1/100,其分母q是否不超过108?
|
||
|
||
# --hints--
|
||
|
||
`euler198()`应该返回52374425。
|
||
|
||
```js
|
||
assert.strictEqual(euler198(), 52374425);
|
||
```
|
||
|
||
# --seed--
|
||
|
||
## --seed-contents--
|
||
|
||
```js
|
||
function euler198() {
|
||
|
||
return true;
|
||
}
|
||
|
||
euler198();
|
||
```
|
||
|
||
# --solutions--
|
||
|
||
```js
|
||
// solution required
|
||
```
|