For given input matrix a, rotate it by 90 degrees and find the sum of the diagonals.
1 2 3 4
5 6 7 8
8 10 12 -2
-1 -3 -5 -7
Find the sum of all the numbers of the input vector
Which values occur exactly three times?
Generate N equally spaced intervals between -L and L
Return 'on' or 'off'
What number has this problem?
ASCII sum of phrases
Find NaNs in the matrix
Check if there are white spaces in the input string
Product of all elements in an array
Percentage of zeros in a matrix of only 1s and 0s
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