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这题卡常~ 被 TLE 哭的进来看

Posted by yfsyfs2 at 2020-06-15 13:41:10 on Problem 2932
注意,扫描线党请注意,lower_bound的正确姿势是 s.lower_bound(x), 而不要 lower_bound(s.begin(), s.end()), 前者能 1000ms 左右a过, 后者被 T 飞

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