The first number is 1 (1 个 1), that's why the second is 11 (2 个 1), so the third one is 21(1个2,1个1), based on that, the fourth is 1211...and so on...... it is an old game, have fun la...
[ Last edited by 兰若 on 2006-4-17 at 23:52 ]作者: 廖康 时间: 2006-4-17 19:40 My son, who is 7 years old, has read this in a math book and told me the answer, the same as given by benfangd.作者: 兰若 时间: 2006-4-17 22:08 我的一个朋友给我出的这个题,当时我苦思冥想,数列啥的都用了,就是弄不出规律来,而且在他语重心长的提示声中我依然一脸茫然,直到他把答案告诉我,当时立刻觉得自己的智商从20降到了18。。。。hoho...