摘要：
[洛谷传送门](https://www.luogu.com.cn/problem/CF1844G "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/1844/G "CF 传送门") 出题人脑洞真大…… 设 $x_i$ 为 $i$ 阅读全文
posted @ 2023-07-16 20:51
zltzlt
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摘要：
[洛谷传送门](https://www.luogu.com.cn/problem/CF1844C "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/1844/C "CF 传送门") 原题是 [[ARC092E] Both Side 阅读全文
posted @ 2023-07-16 20:00
zltzlt
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摘要：
[洛谷传送门](https://www.luogu.com.cn/problem/AT_arc092_c "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/arc092/tasks/arc092_c "AtCoder 传送门") Key obser 阅读全文
posted @ 2023-07-16 20:00
zltzlt
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