1 solutions

  • 0
    @ 2023-9-22 11:23:03

    显然的我们可以倒序操作，把删边变成加边，然后乱做即可。

    • 1

    [SNOI2022] 垃圾回收

    Information

    ID
    7653
    Time
    2000ms
    Memory
    512MiB
    Difficulty
    4
    Tags
    # Submissions
    5
    Accepted
    1
    Uploaded By
    1. About
    2. Contact Us
    3. Privacy
    4. Terms of Service
    5. Copyright Complaint
    6. Language
    7. Legacy mode
    8. Theme
    2. 粤ICP备2021104657号
    3. Worker 0, 9ms
    4. Powered by Hydro v4.14.1 Community