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测试数据有BUG!!!!下面的测试结果应该是9(射X正半轴方向),可以网上找了AC的代码算出来是7。 1 12 -4 0 0 1 -4 0 0 0 4 0 -4 0 0 1 1 0 0 -1 1 0 2 0 3 0 3 0 4 0 4 -1 -1 4 3 -3 -100 99 -3 -3 6 5 3 0 -6 8 3 1 -6 8 0 0 Followed by:
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