Remove the polynomials that have positive real elements of their roots.
Project Euler: Problem 4, Palindromic numbers
QWERTY Shift Code Decoder
Area of an equilateral triangle
Count the number of reaction chains achievable in T mins
Trace the path of a harmful chemical in an ecological network
Maximize the production in a plant within equipment capacity
Design a tubesheet for shell-and-tube heat exchangers
Pitting corrosion on a metal plate: Find the largest pit
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