Given vector x, calculate the alternating sum
y = x(1) - x(2) + x(3) - x(4) + ...
Given an unsigned integer x, find the largest y by rearranging the bits in x
Distance walked 3D
Detect a number and replace with two NaN's
What number has this problem?
Cyclic element of
Leap years on other planets
Mean ignoring NaNs
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