Write a program that use two classes. Calculate the factorial of a given number by using one class and calculate the sum of three numbers by using the second class. Both the classes should have their constructor functions.

Exercise 3: ● Comments in C++ are written with special characters. Insert the missing parts: How to Make this a single-line comment And Make this a multi-line comment SME Exarcica A:

C program, similar question from the book C how to program  eighth edition  question 4.14 but the problem add the -1

Create a code in C ++ whose function is to convert a decimal number to an octal one

40- A C++ code line ends with • A Semicolon (;) • A Comma (,) • A Full stop(.) • A Slash (/)