摘要: 传送门 Task Name Time Limit Memory Limit A Coffee 2 sec 1024 MB Submit only if its 3-rd and 4-th characters are equal and its 5-th and 6-th characters ar 阅读全文
posted @ 2020-05-09 23:50 163467 阅读(128) 评论(0) 推荐(0) 编辑