C++ Binary to Hexadecimal

1. The Input should : a. Allow to input an integer from 0 -> 2,000,000. b. Validate the input. If input is invalid, make them enter again

2. . Process using the Division method for converting Decimal to Binary, and converting Decimal to Hexadecimal also divide the quotient by 2 or 16.

Also show the answer with, the digits, in the proper order, loop and stop looping and ask user to input another positive integer when user enters -1

The output at beginning of the program, displays a welcome message, stating to the user what this program does, when printing the results, display both the original decimal value and the two calculated values.