CCCherry

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2020年1月22日 #

SDNU_ACM_ICPC_2020_Winter_Practice_1st

摘要： A Petya is a big fan of mathematics, esecially its part related to fractions. Recently he learned that a fraction is called proper iff its numerator i 阅读全文

posted @ 2020-01-22 20:50 CCCherry 阅读(187) 评论(0) 推荐(0) 编辑

凉脾的比赛

摘要： A - DRM Messages DRM Encryption is a new kind of encryption. Given an encrypted string (which we’ll call a DRM message), the decryption process involv 阅读全文

posted @ 2020-01-22 18:59 CCCherry 阅读(171) 评论(0) 推荐(0) 编辑