Swap the first and last columns
Which doors are open?
First N Perfect Squares
Create sequnce 1 4 9 16 25.........
Delete x value in given vector y.
Divide polynomial p1 by p2.
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Find sum of negative elements in row.
Calculate the sum of elements of n*n Hilbert matrix.
Set x value to each odd index of vector y.
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