The right way to do it is straight-forward: int hours = /*some_number*/; int wage = 100*hours; if (hours > 40) wage += 50 * (hours-40); To squeeze it to a single expression, the example takes advantage of the fact that a boolean is either 1 or 0. So x*some_bool evaluates to either x or 0. … Read more
You seem to have mixed up the direction of the inequality operators. When Python sees x = 7 < 5, it finds the truth value of the inequality 7 < 5 and assigns it to x. 7is not less than 5, so the statement 7 < 5 is False. So Python says x = False. … Read more
XORing N copies of K together produces K if N is odd and 0 if N is even. K ^ K == 0, 0 ^ K == K, and it just alternates between those results with every additional K. (Your code is currently XORing n+1 copies of k together, which I’m guessing is a mistake.) … Read more
Your functions mypredicate and compare are merely thin wrappers over the binary operators == and <. Operators are like functions: they take a number of arguments of a given type, and return a result of a given type. For example, imagine a function bool operator==(int a, int b) with the following specification: if a equals … Read more