Students P11141

Using the definition

    struct Student {
        int idn;
        string name;
        double mark;        // The mark is a value between 0 and 10, or -1 that represents NP
        bool repeater;
    };

implement the procedure

    void information(const vector<Student>& stu, double& min, double& max, double& avg)

that computes the minimum mark (@min@), the maximum mark (@max@) and the average mark (@avg@) of all the students of the table @stu@ that have taken the exam and that are not repeaters. If none of the students that has these requirements, the value of these parameters must be $-1$.

Observation

You only need to submit the required classes; your main program will be ignored.

Strictly obey the type definitions of the statement.