2020年7月26日
CF 1368D AND, OR and square sum
摘要： 传送门 题目： Gottfried learned about binary number representation. He then came up with this task and presented it to you. You are given a collection of nn 阅读全文
posted @ 2020-07-26 16:31 SummerMingQAQ 阅读(247) 评论(0) 推荐(0) 编辑