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Pyth, 6 bytes +!-Q2s Try it online! I think there might be a way to shave a byte, but I can't find it. s Sum the input + Add -Q2 Remove the twos from the input ! Nega...
Answer
#1: Initial revision
by
isaacg
·
2024-03-03T04:48:13Z (9 months ago)
# [Pyth], 6 bytes
+!-Q2s
[Try it online!][TIO-ltb0ni14]
I think there might be a way to shave a byte, but I can't find it.
s Sum the input
+ Add
-Q2 Remove the twos from the input
! Negate
[Pyth]: https://github.com/isaacg1/pyth
[TIO-ltb0ni14]: https://tio.run/##K6gsyfj/X1tRN9Co@P9/Ix0jAA "Pyth – Try It Online"