(a) Write a program in any high-level language to read an integer and display a pattern like the one below. For example, if the given integer is…

(a) Write a program in any high-level language to read an integer and display a pattern like the one below. For example, if the given integer is 1234, the following pattern will be printed:

1 2 3 4
2 3 4
3 4
4

(b) What is a friend function? Given the following class, show how to add a friend function named isneg() that takes one parameter of type myclass and returns true if num is negative and false otherwise.

class myclass {
    int num;
public:
    myclass(int i) { num = i; }
};