Find shortest between two points on a ball given their azimuthal and polar angles (in degrees) as well as the radius of the sphere.
I took complements of the test case polar angles in order to agree with customary definitions of polar angle.
I agree. Polar angles are, by convention, measured from the pole, but in this problem you have to consider them to be measure from the equator if you wish to agree with the test cases.
Get the area codes from a list of phone numbers
Test if a Number is a Palindrome without using any String Operations
Back to basics 1 - Saving
Matrix with different incremental runs
Side of an equilateral triangle
Generalized N-Cards Problem
Set a Soroban Abacus
Cache me Outside
Triangle Numbers Below N
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