先上题目: Grids Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 0 Accepted Submission(s): 0 Problem Description 度度熊最近很喜欢玩游戏.这一天他在纸上画了一个2行N列的长方形格子.他想把1到2N这些数依次放进去,但是为了使格子看起来优美,他想找到使每行每列都递增的方案.不过画…
Scenic Popularity Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 239 Accepted Submission(s): 60 Problem Description 临近节日,度度熊们最近计划到室外游玩公园,公园内部包括了很多的旅游景点区和休息区,由于旅游景点很热门,导致景点区和休息区都聚集了很多人.所以度度熊…
先上题目: The Query on the Tree Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 54 Accepted Submission(s): 18 Problem Description 度度熊最近沉迷在和树有关的游戏了,他一直认为树是最神奇的数据结构.一天他遇到这样一个问题: 有一棵树,树的每个点有点权,每次有三种…