Solutions to place plus or minus signs to a non-zero digits sequence 123456789 so that result of thus described arithmetic opera
posted @ 2009-12-06 21:43 王峰炬 阅读(158) 评论(0) 推荐(0)
posted @ 2009-12-06 21:43 王峰炬 阅读(158) 评论(0) 推荐(0)
posted @ 2009-11-29 09:41 王峰炬 阅读(160) 评论(0) 推荐(0)
posted @ 2009-11-28 11:52 王峰炬 阅读(194) 评论(0) 推荐(0)
posted @ 2009-11-28 11:50 王峰炬 阅读(565) 评论(0) 推荐(0)
posted @ 2009-11-26 16:53 王峰炬 阅读(139) 评论(0) 推荐(0)
posted @ 2009-11-24 21:31 王峰炬 阅读(159) 评论(0) 推荐(0)
posted @ 2009-11-20 23:54 王峰炬 阅读(119) 评论(0) 推荐(0)
posted @ 2009-11-20 22:50 王峰炬 阅读(183) 评论(0) 推荐(0)