2020年6月4日
A. Ivan the Fool and the Probability Theory
摘要： Recently Ivan the Fool decided to become smarter and study the probability theory. He thinks that he understands the subject fairly well, and so he be 阅读全文
posted @ 2020-06-04 16:59 DeaL57 阅读(220) 评论(0) 推荐(0)
C2. Good Numbers (hard version)
摘要： The only difference between easy and hard versions is the maximum value of nn. You are given a positive integer number nn. You really love good number 阅读全文
posted @ 2020-06-04 10:03 DeaL57 阅读(220) 评论(0) 推荐(0)