Remove the middle element of a vector?
[1,2,3] should return 2
[1,2,3,4] should return 2
 should return empty vector
Remove or return ?
keep it or remove it? confused example.
Sort a list of complex numbers based on far they are from the origin.
Test if a Number is a Palindrome without using any String Operations
Back to basics 25 - Valid variable names
Generate a string like abbcccddddeeeee
select the primes of a vector
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