Do you like the experimental feature at the right?pic.twitter.com/mvm88zlyhK
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invalid: remove any opening/closing [[[]], or switch order, e.g. [()] -> [(]), or mismatch [{)]
thank you very much for this clear explanation! I hope to find the solution at this enigma…
it is ~symmetrical: 1) amount of open = amount of closed 2) open in any order 3) always can open, even after closing
4) close in the reverse order of currently open ones (if you close - you close the last one open)
(some)valid: [] () {} [[]] [()] [{}] ([{}]) ([] {[] ((()))})
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