回複：回複：回複：expert level - hard and time consuming

來源: 於 2010-02-06 08:06:16 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Haha, you are right. It would be the correct answer if the integer is between 2 and 99. I did it with someone in this forum a few years ago. It is very time consuming indeed.