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freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-340-crazy-function.md
Oliver Eyton-Williams ee1e8abd87 feat(curriculum): restore seed + solution to Chinese (#40683)
* 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>
2021-01-12 19:31:00 -07:00

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---
id: 5900f4c21000cf542c50ffd4
title: 问题340疯狂的功能
challengeType: 5
videoUrl: ''
dashedName: problem-340-crazy-function
---
# --description--
对于固定整数abc定义疯狂函数Fn如下Fn= n - c表示所有n> b Fn= Fa + Fa + Fa +所有n≤b的Fa + n
另外定义Sabc=。
例如如果a = 50b = 2000且c = 40则F0= 3240并且F2000= 2040.此外S50,2000,40= 5204240。
找到S217,721,127的最后9位数。
# --hints--
`euler340()`应返回291504964。
```js
assert.strictEqual(euler340(), 291504964);
```
# --seed--
## --seed-contents--
```js
function euler340() {
return true;
}
euler340();
```
# --solutions--
```js
// solution required
```