134 lines
4.1 KiB
Markdown
134 lines
4.1 KiB
Markdown
---
|
||
title: Execute Brain****
|
||
id: 59e0a8df964e4540d5abe599
|
||
challengeType: 5
|
||
videoUrl: ''
|
||
localeTitle: 执行大脑****
|
||
---
|
||
|
||
## Description
|
||
<section id="description"><p>编写一个函数来实现Brain ****解释器。该函数将字符串作为参数,并应返回一个字符串作为输出。更多细节如下: </p><p> <a href="http://rosettacode.org/wiki/Brainf***" title="Brainf ***">RCBF</a>是一套为各种语言的Rosetta Code编写的<a href="http://rosettacode.org/wiki/Brainf***" title="Brainf ***">Brainf ***</a>编译器和解释器。 </p><p>以下是RCBF每个版本的链接。 </p><p>实现只需要正确实现以下指令: </p><p> {| </p><p> !命令</p><p> !描述</p><p> | - </p><p> |风格=“文本对齐:中心” | <code>></code> ||将指针向右移动</p><p> | - </p><p> |风格=“文本对齐:中心” | <code><</code> ||将指针移到左侧</p><p> | - </p><p> |风格=“文本对齐:中心” | <code>+</code> ||增加指针下的内存单元格</p><p> | - </p><p> |风格=“文本对齐:中心” | <code>-</code> ||减少指针下的内存单元格</p><p> | - </p><p> |风格=“文本对齐:中心” | <code>.</code> ||输出指针处单元格表示的字符</p><p> | - </p><p> |风格=“文本对齐:中心” | <code>,</code> ||输入一个字符并将其存储在指针的单元格中</p><p> | - </p><p> |风格=“文本对齐:中心” | <code>[</code> ||如果指针下的单元格为0,则跳过匹配<code>]</code> </p><p> | - </p><p> |风格=“文本对齐:中心” | <code>]</code> ||跳回匹配<code>[</code>如果指针下的单元格非零</p><p> |} </p><p>允许任何单元格大小,EOF( <u>E</u> nd- <u>O</u> - <u>F</u> ile)支持是可选的,无论您是否有有界或无界内存。 </p></section>
|
||
|
||
## Instructions
|
||
<section id="instructions">
|
||
</section>
|
||
|
||
## Tests
|
||
<section id='tests'>
|
||
|
||
```yml
|
||
tests:
|
||
- text: <code>brain(bye)</code>应该重新调整一个字符串
|
||
testString: 'assert(typeof brain(bye) === "string", "<code>brain(bye)</code> should return a string");'
|
||
- text: '<code>brain("++++++[>++++++++++<-]>+++++.")</code should return "A"'
|
||
testString: 'assert.equal(brain("++++++[>++++++++++<-]>+++++."),"A", "<code>brain("++++++[>++++++++++<-]>+++++.")</code should return "A"");'
|
||
- text: '<code>brain(bye)</code>应该回归<code>Goodbye, World!\\r\\n</code>'
|
||
testString: 'assert.equal(brain(bye), "Goodbye, World!\r\n", "<code>brain(bye)</code> should return <code>Goodbye, World!\\r\\n</code>");'
|
||
- text: '<code>brain(hello)</code>应该回归<code>Hello World!\\n</code> ''
|
||
testString: 'assert.equal(brain(hello), "Hello World!\n", "<code>brain(hello)</code> should return <code>Hello World!\\n</code>");'
|
||
- text: '<code>brain(fib)</code>应该返回<code>1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89</code>'
|
||
testString: 'assert.equal(brain(fib), "1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89", "<code>brain(fib)</code> should return <code>1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89</code>");'
|
||
|
||
```
|
||
|
||
</section>
|
||
|
||
## Challenge Seed
|
||
<section id='challengeSeed'>
|
||
|
||
<div id='js-seed'>
|
||
|
||
```js
|
||
function brain (prog) {
|
||
// Good luck!
|
||
}
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
### Before Test
|
||
<div id='js-setup'>
|
||
|
||
```js
|
||
let fib=`+
|
||
|
||
++
|
||
|
||
+++
|
||
|
||
++++
|
||
|
||
+>+>>
|
||
|
||
>>++++
|
||
|
||
+++++++
|
||
|
||
++++++++
|
||
|
||
+++++++++
|
||
|
||
++++++++++
|
||
|
||
++++++>++++
|
||
|
||
++++++++++++
|
||
|
||
+++++++++++++
|
||
|
||
+++<<<<<<[>[>>
|
||
|
||
>>>>+>+<<<<<<<-
|
||
|
||
]>>>>>>>[<<<<<<<
|
||
|
||
+>>>>>>>-]<[>++++
|
||
|
||
++++++[-<-[>>+>+<<
|
||
|
||
<-]>>>[<<<+>>>-]+<[
|
||
|
||
>[-]<[-]]>[<<[>>>+<<
|
||
|
||
<-]>>[-]]<<]>>>[>>+>+
|
||
|
||
<<<-]>>>[<<<+>>>-]+<[>
|
||
|
||
[-]<[-]]>[<<+>>[-]]<<<<
|
||
|
||
<<<]>>>>>[++++++++++++++
|
||
|
||
+++++++++++++++++++++++++
|
||
|
||
+++++++++.[-]]++++++++++<[
|
||
|
||
->-<]>+++++++++++++++++++++
|
||
|
||
+++++++++++++++++++++++++++.
|
||
|
||
[-]<<<<<<<<<<<<[>>>+>+<<<<-]>
|
||
|
||
>>>[<<<<+>>>>-]<-[>>.>.<<<[-]]
|
||
|
||
<<[>>+>+<<<-]>>>[<<<+>>>-]<<[<+
|
||
|
||
>-]>[<+>-]<<<-]`;
|
||
let hello='++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.'
|
||
let bye='++++++++++[>+>+++>++++>+++++++>++++++++>+++++++++>++++++++++>+++++++++++>++++++++++++<<<<<<<<<-]>>>>+.>>>>+..<.<++++++++.>>>+.<<+.<<<<++++.<++.>>>+++++++.>>>.+++.<+++++++.--------.<<<<<+.<+++.---.';
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
</section>
|
||
|
||
## Solution
|
||
<section id='solution'>
|
||
|
||
```js
|
||
// solution required
|
||
```
|
||
</section>
|