freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-215-crack-free-wall...

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---
id: 5900f4431000cf542c50ff56
title: 问题215无裂缝墙
challengeType: 5
videoUrl: ''
---
# --description--
考虑用2×1和3×1砖水平×垂直尺寸建造墙壁的问题使得为了额外的强度水平相邻砖块之间的间隙从不在连续层中排列即从不形成“运行”裂纹”。
例如由于以红色显示的运行裂缝以下9×3墙是不可接受的
有八种形成无裂纹9×3壁的方法写成W9,3= 8。
计算W32,10
# --hints--
`euler215()`应该返回806844323190414。
```js
assert.strictEqual(euler215(), 806844323190414);
```
# --solutions--