题面中表示 0<x1<x2<⋯<xn0 < x_1 < x_2 < \cdots < x_n0<x1<x2<⋯<xn ,可数据中有诸如
2 2 0 1 1 1 1 1 2
的,此刻 x1=x2x_1 = x_2x1=x2 ,是否与题意相悖?