71 lines
1.3 KiB
Markdown
71 lines
1.3 KiB
Markdown
---
|
||
id: 5900f3881000cf542c50fe9b
|
||
challengeType: 5
|
||
videoUrl: ''
|
||
title: 问题28：对角螺旋数
|
||
---
|
||
|
||
## Description
|
||
<section id="description">
|
||
从数字1开始，沿顺时针方向向右移动，形成5 x 5螺旋，如下所示：
|
||
21 22 23 24 25
|
||
20 7 8 9 10
|
||
19 6 1 2 11
|
||
18 5 4 3 12
|
||
17 16 15 14 13
|
||
可以验证对角线上的数字之和为101。
|
||
以相同方式形成的n×n螺旋中的对角线上的数字的总和是多少？
|
||
</section>
|
||
|
||
## Instructions
|
||
<section id="instructions">
|
||
</section>
|
||
|
||
## Tests
|
||
<section id='tests'>
|
||
|
||
```yml
|
||
tests:
|
||
- text: '<code>spiralDiagonals(101)</code>应该返回692101。'
|
||
testString: assert(spiralDiagonals(101) == 692101);
|
||
- text: '<code>spiralDiagonals(101)</code>应该返回18591725。'
|
||
testString: assert(spiralDiagonals(303) == 18591725);
|
||
- text: '<code>spiralDiagonals(101)</code>应该返回85986601。'
|
||
testString: assert(spiralDiagonals(505) == 85986601);
|
||
- text: '<code>spiralDiagonals(101)</code>应该返回669171001。'
|
||
testString: assert(spiralDiagonals(1001) == 669171001);
|
||
|
||
```
|
||
|
||
</section>
|
||
|
||
## Challenge Seed
|
||
<section id='challengeSeed'>
|
||
|
||
<div id='js-seed'>
|
||
|
||
```js
|
||
function spiralDiagonals(n) {
|
||
// Good luck!
|
||
return n;
|
||
}
|
||
|
||
spiralDiagonals(1001);
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
## Solution
|
||
<section id='solution'>
|
||
|
||
```js
|
||
// solution required
|
||
```
|
||
|
||
/section>
|