随笔分类 -  常用结论

Just an Old Puzzle(2019多校1007)
摘要：Problem Description You are given a 4 × 4 grid, which consists of 15 number cells and an empty cell.All numbers are unique and ranged from 1 to 15.In 阅读全文
posted @ 2019-07-31 19:32 black_hole6 阅读(293) 评论(0) 推荐(0)