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• 08:00, 23 December 2020 Once talk contribs created page ECNU XCPC Team Training Round (Created page with "== Problem A == Unsolved. == Problem B == Solved by yanghong. 04:34 (+) 类似数位dp的想法: 从高位到低位枚举， 如果小于边界则直接计算答案， 等...")