Aw drat. I was going to submit the n'th prime problem until I saw this.
Sadly, I see there are too few test cases, and the problem is too easy to cook.
why 'nthprime' not allowed?
Another great problem!
This solution doesn't use any of the built-in MATLAB functions primes() or isprime(). It works for all integers N > 0, and requires only (N^0.75) iterations.
I do not know how the size are computed. Would someone please tell me?. Thanks in advance.
See https://au.mathworks.com/matlabcentral/about/cody/#solve_problems for basic concept. The best way to figure out the details is from experience — just try different alternatives.
Find the two-word state names
Project Euler: Problem 4, Palindromic numbers
Back to basics 17 - white space
Scoring for oriented dominoes
Is A the inverse of B?
Getting the indices from a vector
Project Euler: Problem 1, Multiples of 3 and 5
Find perfect placement of non-rotating dominoes (easier)
Getting logical indexes
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