OJ Board

This problems has a weird IO in terms of precision. I also did a binary search and tested if each triangles intersected, but I also added to the solution a small amount like 1e-6. There are cases where you find something like 3.5004999999 and when you round the number you get 3.500, but the actual J...

You can reduce the brute force to test all zeros only in the first row, all remaining cells will be automatically determined ( try to think why… ).