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
Finding Perfect Squares
intersection of matrices
Tiling a matrix
Remove the positive integers.
generate capital english alphabets
Sum of unique multiples of 3 and 5
Calculating the total earnings of a factory
function to compute root mean square of first nn positive odd integers
convert the number to binary format & count digits
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