I wouldn't call the simpler implementation "commented out code", as it's doing what the best comments are doing, making complex code more readable. Having rand

I wouldn't call the simpler implementation "commented out code", as it's doing what the best comments are doing, making complex code more readable. Having random scribbles, alt solutions and other "shitty" comments while working on a problem is definitely not a sin if you clean them up before pushing them forward.