Multiple times when I was trying to get this challenge to work I was calling either lightCell() or convertColumn inside my for loop (lightCell for me calls convertColumn). This was totally valid, but since I have a complex convertColumn function (to accommodate columns of any size, i.e. column AAC) the repeated calls slowed my code down. The code should function fine but the stupid software limits said “Your code took longer than expected to run.”
This environment that doesn’t show outputs is really not the best for learning in. I’m rather disappointed in this setup and know a few people in my group have already quit because of it.