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SUBMIT YOUR IDEAMy solution
Quite a few multi-rows formula to handle the discontinuity between the line segment.
Honestly, this was one of the toughest to understand. It took lot of time for me to understand how to eliminate the gaps between polyline... Need to focus on this... Thanks @ChristineB for this challenge...
Really interesting challenge - posting my solution here, though I'm sure there are a number of ways to tackle this one.