原题： Lucy and Lily are twins.Today is their birthday.Mother buys a birthday cake for them. Now we put the cake onto a Descartes coordinate. Its center is at (0,0), and the cake’s length of radius is

题意：给你一系列的点，让你找出一条直线AX+BY=0，使直线把这一系列的点分为两个部分。 由于A，B的范围在-500～500之间，所以直接枚举就可以了。 反思：由于没仔细看题意，If there are many solutions, you can only print one of them.这句话让我吃亏了。 调试的程序和Sample Output 不一样，然后就纠结了老久。。。。