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Bitter Alchemy
https://abc095.contest.atcoder.jp/tasks/abc095_b问题描述:Akaki, a patissier, can make N kinds of doughnut using only a certain powder called "Okashi no Moto" (literally "material of pastry", simply called...原创 2018-05-05 21:52:33 · 271 阅读 · 0 评论 -
Fennec VS. Snuke
https://arc078.contest.atcoder.jp/tasks/arc078_b 问题描述 Fennec and Snuke are playing a board game. On the board, there are N cells numbered 1 through N, and N−1 roads, each connecting two cells. Ce...原创 2018-08-05 13:29:21 · 285 阅读 · 0 评论 -
Snuke Numbers
https://arc099.contest.atcoder.jp/tasks/arc099_b 问题描述 Let S(n) denote the sum of the digits in the decimal notation of n. For example, S(123)=1+2+3=6. We will call an integer n a Snuke number when,...原创 2018-08-01 16:52:45 · 833 阅读 · 0 评论