Four Points

You are given 4 points on the 2D plane. You should tell whether there is a triangle whose sides pass through all the 4 points, and if there is, then find one such triangle. The outputted triangle can be degenerate as well (that is, all three of its vertices can be collinear). Input - The first line of the input contains an integer T, denoting the number of test cases. - Each test-case is descri