@LuisMendo This program should print as a string, not a matrix, right? Try it online!

@DJMcMayhem You are removing elements from an array which originally is numeric, so the entries remain as numeric. You need to cast to char (c) somewhere: 32:126ctGom~)D or 32:126tGom~)cD

There's a predefined literal for that (6Y2): so 6Y2tGom~) (the final D is not necessary, as there's an implicit XD)

Or better yet use X- (setdiff): so 6Y2iX-

Hm using symmetric difference you can move the i to the left and so it becomes implicit: I think 6Y2X~ works

Ah, it was the c I needed

Thanks

Weird that this beats Jelly by as much as 3 bytes :-)

It feels a little weird to post this, since you really wrote most of it :P

:-) You should really post it. Give some credit if it makes you feel better :-P

@LuisMendo Done. Thanks for your help!

My pleasure!

@DJMcMayhem For the explanation: actually X~ is symmetric set difference, not set difference (which is X-). That is, X~ gives all elements that are present in one of the sets, but not in the two of them. It works here because the input is always a subset of the other set

OK, I just updated the explanation