area of a polygon is p*a/2.
where, p is the perimeter and
a is the apothem i.e. the normal distance from center to any of the sides of the polygon.
01 - Scalar variables
Determine if a row vector has NaN
Rotate matrix by -90 degrees
Sky full of stars - 03
Find the sequence
Summing Rows and Columns
generate the matrix
No of squares in a grid
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