Shorter than htamas' creative solution for Multiplication Table by StefanPochmann - python coding challenges

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Shorter than htamas' solution in Creative category for Multiplication Table by StefanPochmann

checkio=c=lambda a,b:a and(b|a%2*~-2**len(bin(b))/4)*2+c(a/2,b)

April 21, 2015

Comments:

StefanPochmann on April 21, 2015, 12:38 p.m.
<p>This one is one char longer, but equally long in Python 3 because it only has one division:</p> <pre class='brush: python'>checkio=c=lambda a,b:a and[2*b,2**~-len(bin(b))-2][a%2]+c(a/2,b) </pre>

Mine

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