Created
June 8, 2021 02:03
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| main = interact $ show . sum . bin2dec . reverse . dec2bin . read | |
| where | |
| dec2bin 0 = [] | |
| dec2bin n = dec2bin (n `div` 2) ++ [n `rem` 2] | |
| bin2dec bs = let l = length bs | |
| l1 = l - 1 | |
| l2 = l - 2 | |
| in zipWith (\a b -> a * 2 ^ b) bs [l1,l2..0] |
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