freeCodeCamp/curriculum/challenges/chinese/08-coding-interview-prep/project-euler/problem-412-gnomon-numberin...

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---
id: 5900f5081000cf542c51001a
challengeType: 5
title: 'Problem 412: Gnomon numbering'
videoUrl: ''
localeTitle: 问题412Gnomon编号
---
## Description
<section id="description">对于整数mn0≤n&lt;m令Lmn为m×m网格其中右上n×n网格被移除。 <p>例如L5,3看起来像这样 </p><p>我们希望用连续的整数1,2,3 ......对Lmn的每个单元进行编号使得每个单元格中的数字小于它下面和左边的数字。 </p><p>例如这里有两个有效的L5,3编号 </p><p>设LCmn为Lmn的有效编号。可以证实LC3,0= 42LC5,3= 250250LC6,3= 406029023400和LC10,5mod 76543217 = 61251715。 </p><p>找到LC10000,5000mod 76543217。 </p></section>
## Instructions
<section id="instructions">
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>euler412()</code>应该返回38788800。
testString: 'assert.strictEqual(euler412(), 38788800, "<code>euler412()</code> should return 38788800.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function euler412() {
// Good luck!
return true;
}
euler412();
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>