-- Java version of the kata --

The kata details state that inputs are not sorted. My tests have shown that at least one of the successfully submitted solutions is not correct.
This would be detected if a test was added for the following input (expected result: 3):
new int[][] {{10, 11}, {1, 8}, {6, 9}, {5, 7}})

I have a general question (sorry if it is not an appropriate forum, I am new here)

• Adding sort to existing solutions will make them correct, but also will affect performance, so some of them might no longer be viable... Would a new test somehow invalidate solutions that are already submitted?

I think it's best to raise an issue for this kata. I have so many questions! see what happens :)

I really love the simplicity of this solution.
However - I tested it with this input: new int[][] {{10, 11}, {1, 8}, {6, 9}, {5, 7}})
and it returns 4 - note {10, 11} does not overlap with any other request - the result should be 3.

Am I missing something?