http://codeforces.com/gym/100134
though there are 345 test cases, I think there are a lot of holes in test cases,maybe it is a little boring to write n^2 brute force but sweepline algorithm is also not interesting....
http://codeforces.com/gym/100134
though there are 345 test cases, I think there are a lot of holes in test cases,maybe it is a little boring to write n^2 brute force but sweepline algorithm is also not interesting....
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I don't really see a problem in O(N^2) solution passing for N=10000.