清儿真是太笨了, 今天做这题做了好长时间都没有做出来.....虽然您给了我提示!
如果没有高手做出,请您揭底好吗? 谢谢!
连接编号为(4, 7, 12, 18)和(5, 8, 11, 15)的线. |
fzy asked a question about 18 trees, 18 rows with 4 trees. I still did not get the solution yet. This one happen to be a by-product when I was trying to answer that question. |
欢迎光临 珍珠湾ART (http://69.48.205.96:9997/) | Powered by Discuz! X3 |