考虑在一个打印机上整齐地打印一段文章的问题。输入的正文是n个长度分别为L1、L2、……、Ln（以字符个数度量）的单词构成的序列。我们希望将这个段落在一些行上整齐地打印出来，每行至多M个字符。-Consider neatly on a printer to print a passage problems. N is a text input sequence lengths L1, L2, ......, Ln (to measure the number of characters) of words constituted. We hope that this paragraph neatly on a number of lines printed per line up to M characters.