代码高尔夫:从数字到单词 [英] Code Golf: Number to Words

问题描述

代码高尔夫系列似乎还算流行.我遇到了一些将数字转换为其单词表示的代码.一些例子是(编程乐趣的 2 的幂):

The code golf series seem to be fairly popular. I ran across some code that converts a number to its word representation. Some examples would be (powers of 2 for programming fun):

• 2 -> 两个
• 1024 -> 一千二十四
• 1048576 -> 一百万四千八千五七十六

我的同事提出的算法几乎有两百行长.似乎会有更简洁的方法来做到这一点.

The algorithm my co-worker came up was almost two hundred lines long. Seems like there would be a more concise way to do it.

当前指南:

• 欢迎以任何编程语言提交(我向PhiLho 最初对此缺乏明确性)
• 最大输入为 2^64(请参阅以下链接了解单词，感谢 mmeyers)
• 小规模，首选英文输出，但欢迎使用任何算法.只需对所使用的方法与编程语言一起进行评论即可.

• Submissions in any programming language welcome (I apologize to PhiLho for the initial lack of clarity on this one)
• Max input of 2^64 (see following link for words, thanks mmeyers)
• Short scale with English output preferred, but any algorithm is welcome. Just comment along with the programming language as to the method used.

推荐答案

Lisp，只使用标准函数:

Lisp, using only standard functions:

(format nil "~r" 1234) ==> "one thousand two hundred thirty-four"

奖励:

(format nil "~@r" 1234)  ==> "MCCXXXIV"

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