I like your test suite. Using large X forces a better solution.
Thank you Jonathan. I have discovered this philosophy thanks to James and @bmtran problems.
is there any mathematical algorithm that i dont know about to calculate such big range(10^13)?
i minimized my code as best as i can.still fails for such large number.
why i can't submit my solutions
Return the 3n+1 sequence for n
Create a matrix X, where each column is a shifted copy of the vector v
Determine the number of odd integers in a vector
Create an n-by-n null matrix and fill with ones certain positions
Sum of series I
Can you beat the lottery again (for hardcore coder) ?
Without the French accent please!
How to reverse spdiags?
Replicate elements in vectors
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