摘要: 官方题解; (有时候不知怎么打不开cf,搬过来方便看) 1253A - Один подъем If we set di=bi−aidi=bi−ai, we have to check that dd has the following form: [0,0,…,0,k,k,…,k,0,0,…,0] 阅读全文
posted @ 2019-11-17 20:52 慎独191812 阅读(332) 评论(0) 推荐(0)

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