Hi everybody,

I need help.I've been looking the problem for hours.But i cant find my mistake.This is my awful solution.16437994.Could anyone explain what is my mistake and what should i do? Thanks...

• We have got two line.And we know the line's start and end point cordinate. And if they intersect we will write "Yes" or if they dont intersect write "No" .

• Forexample line1 start (-2,2) and end (2,2) line2 start (-3,-2) and end (2,3)

• The lines are intersect. We will write "Yes".
• Input : -2 2 2 2 -3 -2 2 3

• Output : "Yes"

- I need this problem's solution . Thanks.

Can someone explain how to calculate Contribution Points.