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由于\(k\)够大,你可以随便在图上走环,不用担心不用走,那么你所担心的只有环长的\(\rmgcd\)。将所有强连通分量先求出,满足条件的点对必然在一个强连通分量里。我们以随便一个点为根,跑出强连通分量中的一棵dfs树,我们断言,如果\(dep_x-dep_y\equivdep_y-dep_x\equivk\bmodd\)
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全文链接:https://tecdat.cn/?p=33336Problems:LetX1andX2constitutearandomsampleofsize2fromthepopulationgivenbyf(x;θ)=θxθ-110;1:Ifthecriticalregionx1x2≥3=4isusedtotestthenullhypothesisθ=1againstthealternativehypothes