Suppose you go from x-y coordinates [3,4] to [0,0] to [0,1] to [1,1], then you walked 7 units of distance.
better to describe input size: xy 4-by-2, each row is the xy-coordinate of a point
Needs a richer test suite. A lot of "solvers" have just put a=7 as the "solution", but although this satisfies the single test case, it doesn't solve the problem as stated.
This could be quite a good solution, if you removed the "x = 7; %" part and just left what is now a comment. As it is, although it satisfies the test case, it doesn't actually solve the problem.
... though, just to be clear, the comment wouldn't be quite right, it still needs a little adjustment.
Find the sum of all the numbers of the input vector
Return the 3n+1 sequence for n
Make a run-length companion vector
Given a window, how many subsets of a vector sum positive
peta to nano (x-ray)
Multiply to the limit?
Generate one sample of uniform random numbers between -pi and +pi
count any radix?
Check if any duplicates in your data
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