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我用的方法~很容易想对于B X执行如下操作： 1.将X放入平衡树中 2.用X更新被除数小于等于2500的情况 对于A Y执行如下操作： 1.如果Y小于等于2500直接输出 2.如果Y大于2500就枚举商，到平衡树中找答案 Followed by: Post your reply here: |
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