求助!dfs只有55分,9个TLE!

P3956 [NOIP2017 普及组] 棋盘

9个TLE?!
by wangchengyi2022 @ 2023-08-24 13:58:13


but这道要大剪枝
by wyf1202 @ 2023-08-24 13:59:12


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