2018 年 4月 12 日随笔档案 - zitian246

2018年4月12日

摘要： The 15-puzzle has been around for over 100 years; even if you don't know it by that name, you've seen it. It is constructed with 15 sl... 阅读全文

posted @ 2018-04-12 17:54 zitian246 阅读(139) 评论(0) 推荐(0) 编辑