In test 1 why the iron in x(4,1) did not moved to the top !?
x(4,1) is equidistant to both upper and lower magnet, that's why...
radius of a spherical planet
Back to basics 22 - Rotate a matrix
Hankelize a matrix
all possible subsets of set
longest common semi-substring
Integer Sequence - 1
Construct a precedence graph from a code segment
Generate Square Wave
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