My New Tree Planting Problem

sean9991 · 发表于 2005-8-28 23:09:43

20 trees, 21 rows, each row has 4 trees.

哈哈哈 · 发表于 2005-8-29 07:48:49

Are you sure it's resolvable?

sean9991 · 发表于 2005-8-29 08:05:16

Do you have any doubt of my ability to count numbers no more than 22?

哈哈哈 · 发表于 2005-8-29 08:20:52

Well, I just found that my 20 lines solution is the lastest achievement for this 20-tree problem.

If you can get 21 lines solution, you should write a paper and win a prize for it.

sean9991 · 发表于 2005-8-29 10:14:06

And I did get a graph with 21 rows this afternoon.

sean9991 · 发表于 2005-8-30 18:05:19

Nobody wanna crack this problem?

husonghu · 发表于 2005-8-30 18:23:44

sean9991，你可多等几天，下次用新贴再给答案。

yma16 · 发表于 2005-8-30 21:27:07

Hi Sean9991,

I clicked the links A003035 and A006065 and it says I don't have permission to get in.www.ddhw.com

	3	4	5
Sloane	A003035	A006065	A008997

20

What does [57,60] mean?

Thanks.

sean9991 · 发表于 2005-8-30 23:18:48

People found a solution of 57, and can prove theoratically that there can be no solution with 61 exists.

sean9991 · 发表于 2005-8-30 23:24:05

is just because server busy. You should be able to get in if you try more. There is just number though, no picture given.

寒潭清 · 发表于 2005-8-31 17:18:47

sean9991别着急,我刚刚看到题,容我想想.

		自动登录	找回密码
密码			立即注册

动态微博