It’s uncommon but it’s used once in a while. I do it 2-3 times a year at least. And believe me, most people wouldn’t even know how to start to do it or would th

It’s uncommon but it’s used once in a while. I do it 2-3 times a year at least. And believe me, most people wouldn’t even know how to start to do it or would think it’s too hard and prefer to do it in a different way so they don’t need to ever traverse the graph.