2020年3月30日
B. Checkout Assistant
摘要： 题目链接：http://codeforces.com/problemset/problem/19/B Bob came to a cash & carry store, put n items into his trolley, and went to the checkout counter to 阅读全文
posted @ 2020-03-30 17:03 执||念 阅读(240) 评论(0) 推荐(0) 编辑