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when toggle format what by license comment
Aug 25, 2016 at 11:58 comment added Tobias Kienzler ...in which case I'd even go as far and consider passing operator.add or operator.mul respectively ;)
Aug 25, 2016 at 11:48 comment added Tobias Kienzler "The format of the input is an arbitrary choice of the programmer"
Aug 25, 2016 at 1:54 comment added Dennis If taking input as an array of strings and a single string is allowed, e.g., f(['81', '31'],'+'), a further byte can be saved, but that feels like stretching the rules a bit too far...
Aug 25, 2016 at 1:52 history answered Dennis CC BY-SA 3.0