Four Intervals, No Plan

You have [[3,6],[1,4],[8,10],[2,5]] and you need to find every overlapping pair.

No sorting. No tricks. Just raw comparisons.

With 4 intervals that means 6 pair checks. With 100 intervals? 4,950. With 1,000? Nearly half a million.

Can you even find them all without missing one?

Feel the Chaos

Find the overlapping pairs. Tap two intervals to check.

Tap two intervals to check if they overlap. Find all overlapping pairs in 36,14,810,25.
01234567891011[3,6][1,4][8,10][2,5]
0
pairs checked
/
6
total pairs
|
0
overlaps found