Hmm
codegolf.meta.stackexchange.com/a/16692/52210 looks easier than it is (in 05AB1E), which is why I would have liked a
pop from global array lol. I'll take another look later on. Currently have to get back to work. Luckily it's still in the Sandbox. My approach with overlapping pairs, and filtering out products of 0 is obviously flawed for test cases with two adjacent zeroes I now realize..