Asif, Thanks for another nice problem.
I think the description would be improved if it said the "red shaded portion", because there are two shaded portions in the drawing.
Remove the polynomials that have positive real elements of their roots.
Find state names that start with the letter N
Determine if a Given Number is a Triangle Number
Sum the Digits of a Number
Simple equation: Annual salary
How lucky r u ?
Repeat elements of a vector
Sieve of Eratosthenes
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