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传送门： http://acm.hdu.edu.cn/showproblem.php?pid=2492Problem Description N(3<=N<=20000) ping pong players live along a west-east street(consider the street as a line segment). Each player has a unique s

Problem Description Kingdom Rush is a popular TD game, in which you should build some towers to protect your kingdom from monsters. And now another wave of monsters is coming and you need again to kno