56 lines
1.0 KiB
Markdown
56 lines
1.0 KiB
Markdown
---
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id: 5900f5311000cf542c510044
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challengeType: 5
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videoUrl: ''
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title: 问题453：格子四边形
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---
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## Description
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<section id="description">简单的四边形是具有四个不同顶点的多边形，没有直角并且不会自相交。 <p>设Q（m，n）为简单四边形的数量，其顶点为格点，坐标（x，y）满足0≤x≤m且0≤y≤n。 </p><p>例如，Q（2,2）= 94，如下所示： </p><p>还可以证实Q（3,7）= 39590，Q（12,3）= 309000和Q（123,45）= 70542215894646。 </p><p>找到Q（12345,6789）mod 135707531。 </p></section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>euler453()</code>应该返回104354107。
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testString: assert.strictEqual(euler453(), 104354107);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function euler453() {
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// Good luck!
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return true;
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}
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euler453();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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/section>
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