solutions are rounded in a somewhat arbitrary fashion...
Your value of pi is wrong.
The problem should specify that the used value for pi is 3.1416 (since this is not its true value), and that we need to use floor with precision of 4 decimal places.
Finding Perfect Squares
Sorted highest to lowest?
Back to basics 1 - Saving
Make a random, non-repeating vector.
Find Out sum of principal diagonal element of given matrix
Xor of matrix
Change number representation to HEX
Is it prime?
Throw common elements of two vector arrays
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