HBC222874[NOIP2003]数字游戏,动态规划,NOIP复赛,搜索IndustrialNuclearWater题解

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Giant Kingdom creates tons of drinkable water, and will discharge the water into an ocean. The ocean can be simplified to a 3-dimensional space. Because of some magic, there are 3 surfaces, 1000∣x∣=y2+z2,1000∣y∣=x2+z2,1000∣z∣=x2+y21000|x|=y^2+z^2,1000|y|=x^2+z^2,1000|z|=x^2+y^21000∣x∣=y2+z2,1000∣y∣=x2+z2,1000∣z∣=x2+y2, and water can't pass through any of the surfaces. Baby Kingdom is worried about whether the drinkable water can reach their country. Given are two coordinates,,, indicate the position of Giant Kingdom and the position of Baby Kingdom. Please find out weather the drinkable water can reach Baby Kingdom. It is guaranteed that both countries do not located in any of the surfaces. You need to answerTT_{}T queries.

Giant Kingdom creates tons of drinkable water, and will discharge the water into an ocean. The ocean can be simplified to a 3-dimensional space. Because of some magic, there are 3 surfaces, 1000∣x∣=y2+z2,1000∣y∣=x2+z2,1000∣z∣=x2+y21000|x|=y^2+z^2,1000|y|=x^2+z^2,1000|z|=x^2+y^21000∣x∣=y2+z2,1000∣y∣=x2+z2,1000∣z∣=x2+y2, and water can't pass through any of the surfaces. Baby Kingdom is worried about whether the drinkable water can reach their country. Given are two coordinates (x1,y1,z1),(x2,y2,z2)(x_1,y_1,z_1),(x_2,y_2,z_2)(x1​,y1​,z1​),(x2​,y2​,z2​) indicate the position of Giant Kingdom and the position of Baby Kingdom. Please find out weather the drinkable water can reach Baby Kingdom. It is guaranteed that both countries do not located in any of the surfaces. You need to answer TT_{}T​ queries.

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标签： HBC222874[NOIP2003]数字游戏 动态规划 NOIP复赛 搜索IndustrialNuclearWater题解