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一次AC ，16ms...//2392 Accepted 280K 16MS C++ 1575B //首先要证明 ，所有的箱子必然从下到上按 a_i 非减序排列， //如果存在反例 ，那么交换此两个箱子，必然也满足条件。。。 Followed by: Post your reply here: |
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