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    @ 2024-11-24 8:59:22

    题目思路

    三级标题

    四级标题

    因为每个数位的数字都不能相等，因此凑出的正整数的长度不会超过9，所以可以枚举正整数的长度

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    A+B Problem

    Information

    ID
    1
    Time
    1000ms
    Memory
    256MiB
    Difficulty
    10
    Tags
    # Submissions
    8
    Accepted
    2
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