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注意最后的坐标范围可以很大ax+by+c<0 虽然0<=a,b,c<=1, 但是x,y可以很大。 测试超过1000，开到1e6过了。 另外题目要求x,y为正，所以边界必须有xOy. Followed by: Post your reply here: |
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