4728 A Game in the Hospital
4729 An Easy Problem for Elfness
4730 We Love MOE Girls
签到题目
4731 Minimum palindrome
规律+构造
4732 Round Table
4733 G(x)
枚举+dp
4734 F(x)
数位dp基础题目。
4735 Little Wish~ lyrical step~
搜索剪枝+最短路+DLX重复覆盖
4736 This Is The Job The Bear Finds
4737 A Bit Fun
暴力,数据有点弱。