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传送门：洛谷 CF2167G Mukhammadali and the Smooth Array | Codeforces G. Mukhammadali...

传送门：洛谷 CF2148C Pacer | Codeforces C. Pacer更佳的阅读体验：CF2148C 题解简要题意：FJ 第 $0$ 分钟位...

传送门：洛谷 CF2148D Destruction of the Dandelion Fields | Codeforces D. Destructio...

传送门：洛谷 CF2148B Lasers | Codeforces B. Lasers更佳的阅读体验：CF2148B 题解简要题意：有 $n$ 条水平激...

传送门：洛谷 CF2147B Multiple Construction | Codeforces B. Multiple Construction更佳的...