UVA892 Finding words

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=10&page=show_problem&problem=833 [PDF](https://uva.onlinejudge.org/external/8/p892.pdf) A common problem when processing incoming text is to isolate the words in the text. This is made more difficult by the punctuation; words have commas, "quote marks", (even brackets) next to them, or hy-phens in the middle of the word. This punctuation doesn't count as letters when the words have to be looked up in a dictionary by the program. For this problem, you must separate out "clean" words from text, that is, words with no attached or embedded non-letters. A "word" is any continuous string of non-whitespace characters, with whitespace characters on each side of it. For this problem, a "whitespace" character is a space character or an end-of-line character, or the start or end of the file (so that, for example, if the input file consists of `Anne Bob`, where there is a space character between the A and B but no other, then there are two words, `Anne` and `Bob`).

Input will consist of lines with no more than 60 characters in each line. Every line will be terminated by a character which isn't whitespace (which will be followed immediately by an end-of-line character). The input will be terminated by a line consisting of a single `#`.

Output must be the lines of the incoming text, with the non-letters stripped away from each word. A non-letter is any character which is not a letter (a - z and A - Z) and not a whitespace character. Your program must not change the letters and space characters (although space characters at the ends of lines will be ignored by the judges). When a non-letter occurs in the middle of a word (ie there is no whitespace character next to it), it must be simply removed (see what happens to the word `doesn’t` in the example). A word which consists entirely of non-letters will therefore be removed entirely. There is a special rule for a hyphen (`-`) when it is the very last character in a line: - the word part before the hyphen and the first word part on the next line form a single word; - this complete word must be written on a line by itself; - you can assume that there will always be a space before the word part on the first line, and a space after the word part on the second line.

使用 GPT5.2 转换自原[PDF](https://uva.onlinejudge.org/external/8/p892.pdf)。