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摘要: http://acm.hdu.edu.cn/showproblem.php?pid=5723 Abandoned country Problem Description An abandoned country has n(n≤100000) villages which are numbered 阅读全文
posted @ 2016-07-20 15:30 Shadowdsp 阅读(399) 评论(0) 推荐(0) 编辑