awesome

You can also use the group_by method

good

so clever!

Your on a next level man! Nice!

Yes

@Roots2D:

symbols.key(c) ensures that value 'c' has a proper matching key (an opening parenthesis).
If it did have a proper opening parentheses, then symbols.key(c) would return true.

If we didn't have it, then the block would return false if 'c' is anything other than an opening parenthesis.

Hope this helps
Let me know if you have any other questions

thanks for the super crazy awesome solution!

what is the significance of (if symbols.key(c) && symbols.key(c) != stack.pop) compared to (if symbols.key(c) != stack.pop)?

thank you el cortez! i wish every questions had an explanation.

Awesome, took me sometime to fully understand this but it was worth dissecting, thanks!

can anyone explain this?

How can you so clever? How many code that you have writen?