Maybe n<=50 and abs(x), abs(y)<=1000 Problem link:http://acm.hdu.edu.cn/showproblem.php?pid=6219
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Maybe n<=50 and abs(x), abs(y)<=1000 Problem link:http://acm.hdu.edu.cn/showproblem.php?pid=6219
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Think about sweep line. What info do ypu need once you do that? Does DP work? Good luck.
emmm... Could U tell me detail? sorry I just can't comprehend
Thanks :p
This problem is very similar to the one which appeared in Bubble Cup X finals this year. Editorial