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POJ2728 Desert King 【最优比率生成树】
摘要：POJ2728 Desert KingDescriptionDavid the Great has just become the king of a desert country. To win the respect of his people, he ... 阅读全文
posted @ 2018-05-20 19:18 Dream_maker_yk 阅读(132) 评论(0) 推荐(0)