不吸氧水不过去，有大佬指点下哪里可以优化么，拜谢

P2944 [USACO09MAR] Earthquake Damage 2 G

吸氧能过就行了呗
by Diamiko @ 2021-11-15 17:50:03

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快读 还有STL雀氏好像吸氧才快
by Fish9块1 @ 2021-11-15 18:31:38

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