2018年6月7日
T-shirt
摘要： 题目描述 JSZKC is going to spend his vacation! His vacation has N days. Each day, he can choose a T-shirt to wear. Obviously, he doesn’t want to wear a si 阅读全文
posted @ 2018-06-07 12:56 house_cat 阅读(284) 评论(0) 推荐(1) 编辑