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
785 B
Markdown
47 lines
785 B
Markdown
---
|
||
id: 5900f4931000cf542c50ffa5
|
||
title: 问题294：数字总和-经验＃23
|
||
challengeType: 5
|
||
videoUrl: ''
|
||
dashedName: problem-294-sum-of-digits---experience-23
|
||
---
|
||
|
||
# --description--
|
||
|
||
对于正整数k，将d（k）定义为通常的十进制表示形式中k的位数之和。
|
||
|
||
因此d（42）= 4 + 2 = 6。
|
||
|
||
对于正整数n，将S（n）定义为具有以下属性的正整数k <10n的数量： k可被23整除 d（k）= 23。
|
||
|
||
给出S（9）= 263626和S（42）= 6377168878570056。
|
||
|
||
找到S（1112）并给出答案mod 109。
|
||
|
||
# --hints--
|
||
|
||
`euler294()`应该返回789184709。
|
||
|
||
```js
|
||
assert.strictEqual(euler294(), 789184709);
|
||
```
|
||
|
||
# --seed--
|
||
|
||
## --seed-contents--
|
||
|
||
```js
|
||
function euler294() {
|
||
|
||
return true;
|
||
}
|
||
|
||
euler294();
|
||
```
|
||
|
||
# --solutions--
|
||
|
||
```js
|
||
// solution required
|
||
```
|