1. Consider the following function: int mystery(int x, double y, char ch) { if (x == 0 && ch > 'A') return(static_cast(pow(y, 2)) + static_cast (ch)); else if (x > 0) return(x + static_cast(sqrt(y)) - static_cast (ch)); else return(2 * x + static_cast(y) - static_cast (ch)); }