2018年9月3日
HDU 5421（回文树）
摘要： 传送门题面：Victor loves to play with string. He thinks a string is charming as the string is a palindromic string. Victor wants to play nn time... 阅读全文
posted @ 2018-09-03 23:11 ChenJr 阅读(264) 评论(0) 推荐(0)