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2079 请管理员添加三组数据虽然蒟蒻还没AC,但是Discuss里面所有数据蒟蒻都过了 6 4 -5 6 -2 5 2 -4 5 -6 2 -5 -2 -1 显然(4,-5),(5,2),(-6,2)构成了面积 38.50 的三角形. 5 8 -3 8 -2 -2 6 -2 3 4 -2 -1 显然(4,-2),(8,-2),(-2,6) 面积 16 7 -3 8 -4 -10 -8 -6 -9 0 -6 -10 -9 3 0 -4 -1 由叉积(-3,8),(-4,-10),(-9,3) 面积 51.50 上面的数据基本卡掉了网上所有标程.规模很小,神牛们可以三秒写一个暴力来验证. 然后我还是没有AC 泣 Followed by:
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