萌新刚学OI $10 ^ {-1145141919810}$ ms， 求助猫树

SP1043 GSS1 - Can you answer these queries I

qndmx
by RP_INT_MAX @ 2022-10-23 19:14:12

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qndmx
by RichardCgy @ 2022-10-23 19:32:40

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