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写半平面交滴童鞋们注意哒。。。。。。1、不卡精度偶，1e-8足够鸟 2、初始多边形为正方形4个顶点坐标是(eps,eps),(inf,eps),(inf,inf),(eps,inf)不能把eps写成0哦不然如果最后求出的半平面交退化为x轴或y轴是不符合题意滴（题目要求三段路长度大于0不能等于0）。再就是inf不能太小哦，因为1/9999-1/10000=1/99990000，所以inf最好设为99990005以上（但也还是double哟）就可以过啦！ Followed by: Post your reply here: |
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