freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-453-lattice-quadril...

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---
id: 5900f5311000cf542c510044
title: 问题453格子四边形
challengeType: 5
videoUrl: ''
dashedName: problem-453-lattice-quadrilaterals
---
# --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。
设Qmn为简单四边形的数量其顶点为格点坐标xy满足0≤x≤m且0≤y≤n。
例如Q2,2= 94如下所示
还可以证实Q3,7= 39590Q12,3= 309000和Q123,45= 70542215894646。
找到Q12345,6789mod 135707531。
# --hints--
`euler453()`应该返回104354107。
```js
assert.strictEqual(euler453(), 104354107);
```
# --seed--
## --seed-contents--
```js
function euler453() {
return true;
}
euler453();
```
# --solutions--
```js
// solution required
```